mxme.py: Checking/Enabling secondary MX.
Signed-off-by: Georg <georg@lysergic.dev>
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@ -1,5 +1,20 @@
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#!/usr/bin/python3
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"""
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The flagship email-domain enabler and repair tool for Mailcow/PowerDNS infrastructures.
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The following checks will be performed:
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DNS:
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- DMARC record
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- DKIM record
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- MX1 + MX2 records
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Mail:
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- MX1 domain entry
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- MX2 domain entry
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- MX1 DKIM keypair
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If any of the checks fail, the failed operation will be written to the respective system, in addition to overwriting possibly existing DNS records with fresh DMARC/DKIM/SPF/MX records.
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Created and Last modified: 15/09/2021 by Georg Pfuetzenreuter <georg@lysergic.dev>
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"""
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import requests
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import sys
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@ -21,8 +36,10 @@ APIKEY_PDNS = os.environ.get('APIKEY_PDNS')
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# MAILCOW SETTINGS
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ENDPOINT_MAILCOW = os.environ.get('ENDPOINT_MAILCOW')
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APIKEY_MAILCOW = os.environ.get('APIKEY_MAILCOW')
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ENDPOINT_MAILCOW_2 = os.environ.get('ENDPOINT_MAILCOW_2')
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APIKEY_MAILCOW_2 = os.environ.get('APIKEY_MAILCOW_2')
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if None in (ENDPOINT_PDNS, APIKEY_PDNS, ENDPOINT_MAILCOW, APIKEY_MAILCOW):
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if None in (ENDPOINT_PDNS, APIKEY_PDNS, ENDPOINT_MAILCOW, APIKEY_MAILCOW, ENDPOINT_MAILCOW_2, APIKEY_MAILCOW_2):
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print("Could not load environment variables. Please check your .env file.")
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sys.exit(0)
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@ -58,7 +75,7 @@ if dnsok == False:
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sys.exit(1)
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# MAILCOW (can I put cow emoji in comment?)
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print("Mail: Querying domain ...")
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print("Mail [MX1]: Querying domain ...")
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server = ENDPOINT_MAILCOW
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api_key = APIKEY_MAILCOW
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api = '/api/v1'
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@ -91,36 +108,67 @@ except requests.exceptions.HTTPError as err:
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print(err)
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sys.exit(1)
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if mailok == True and initprimary == False:
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print("Mail: Querying DKIM ...")
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URL = server + get + '/dkim/' + domain
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try:
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response = requests.get(
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URL,
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headers = {'accept': 'application/json', 'X-API-Key': api_key},
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)
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data = response.json()
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#print(data)
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if 'dkim_selector' in data:
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selector = data['dkim_selector']
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txtshould = data['dkim_txt']
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length = data['length']
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pubkey = data['pubkey']
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#print(f"Domain: {domain}\nSelector: {selector}\nTXT: {txtshould}\nPublic Key: {pubkey}")
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#print(txtshould)
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print("Mail: DKIM keypair found.")
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dkimok = True
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else:
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dkimok = False
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print("Mail: No DKIM keypair found.")
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except KeyError:
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print("Mail: No or faulty DKIM lookup.")
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except requests.exceptions.ConnectionError as err:
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print("Connection failed.")
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sys.exit(1)
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except requests.exceptions.HTTPError as err:
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print(err)
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sys.exit(1)
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print("Mail [MX2]: Querying domain ...")
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server2 = ENDPOINT_MAILCOW_2
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api_key2 = APIKEY_MAILCOW_2
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api2 = '/api/v1'
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URL = server2 + get + '/domain/' + domain
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try:
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response = requests.get(
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URL,
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headers = {'accept': 'application/json', 'X-API-Key': api_key2},
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)
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data = response.json()
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status = response.status_code
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#print(data)
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if 'max_new_mailbox_quota' in data:
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print("Mail: Domain found.")
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mail2ok = True
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initsecondary = False
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domain_name = data['domain_name']
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relayhost = data['relayhost']
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else:
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mail2ok = False
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initsecondary = True
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print("Mail: Domain NOT found.")
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dkim2ok = False
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except requests.exceptions.ConnectionError as err:
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print("Connection failed.")
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sys.exit(1)
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except requests.exceptions.HTTPError as err:
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print(err)
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sys.exit(1)
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#if mailok == True and initprimary == False:
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print("Mail: Querying DKIM ...")
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URL = server + get + '/dkim/' + domain
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try:
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response = requests.get(
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URL,
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headers = {'accept': 'application/json', 'X-API-Key': api_key},
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)
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data = response.json()
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#print(data)
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if 'dkim_selector' in data:
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selector = data['dkim_selector']
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txtshould = data['dkim_txt']
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length = data['length']
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pubkey = data['pubkey']
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#print(f"Domain: {domain}\nSelector: {selector}\nTXT: {txtshould}\nPublic Key: {pubkey}")
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#print(txtshould)
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print("Mail: DKIM keypair found.")
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dkimok = True
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else:
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dkimok = False
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print("Mail: No DKIM keypair found.")
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except KeyError:
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print("Mail: No or faulty DKIM lookup.")
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except requests.exceptions.ConnectionError as err:
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print("Connection failed.")
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sys.exit(1)
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except requests.exceptions.HTTPError as err:
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print(err)
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sys.exit(1)
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print("DNS: Querying records ...")
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URL = ENDPOINT_PDNS + '/api/v1/servers/localhost/zones/' + domain + './export'
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@ -155,10 +203,32 @@ try:
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except NameError:
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print("DNS: No DMARC TXT record found.")
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dnsdmarcok = False
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for record in data.split('\n'):
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if '10 3gy.de.' in record:
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mxrec1 = record
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try:
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mxrec1
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print("DNS: Found primary MX record.")
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dnsmx1ok = True
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except NameError:
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print("DNS: Did NOT find primary MX record.")
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dnsmx1ok = False
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for record in data.split('\n'):
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if '20 3gy.pl.' in record:
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mxrec2 = record
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try:
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mxrec2
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print("DNS: Found secondary MX record.")
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dnsmx2ok = True
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except NameError:
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print("DNS: Did NOT find secondary MX record.")
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dnsmx2ok = False
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except NameError:
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print("DNS: Missing or faulty DKIM/DMARC records.")
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print("DNS: Missing or faulty records.")
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dnsdmarcok = False
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dnsdkimok = False
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dnsmx1ok = False
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dnsmx2ok = False
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except requests.exceptions.ConnectionError as err:
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print("Connection failed.")
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sys.exit(1)
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@ -166,17 +236,21 @@ except requests.exceptions.HTTPError as err:
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print(err)
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sys.exit(1)
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if dnsok == True and mailok == True and dkimok == True and dnsdkimok == True and dnsdmarcok == True:
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if dnsok == True and mailok == True and dkimok == True and dnsdkimok == True and dnsdmarcok == True and dnsmx1ok == True and dnsmx2ok == True:
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print("All good. No changes seem to be needed. Aborting.")
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sys.exit(0)
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else:
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print("Found inconsistencies:")
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print(f"DNS OK: {dnsok} - Mail OK: {mailok} - Mail DKIM OK: {dkimok} - DNS DKIM OK: {dnsdkimok} - DNS DMARC OK: {dnsdmarcok}")
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print("Will attempt a full repair if not cancelled within 5 seconds ...")
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time.sleep(5)
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print(f"DNS OK: {dnsok} - Mail OK: {mailok} - Mail DKIM OK: {dkimok} - DNS DKIM OK: {dnsdkimok} - DNS DMARC OK: {dnsdmarcok} - DNS MX1 OK: {dnsmx1ok} - DNS MX2 OK: {dnsmx2ok}")
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try:
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print("Will attempt a full repair if not cancelled within 5 seconds ...")
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time.sleep(5)
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except KeyboardInterrupt:
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print(" Cancelled!")
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sys.exit(1)
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if initprimary == True:
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print("Mail: Initializing domain ...")
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print("Mail [MX1]: Initializing domain ...")
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URL = server + add + '/domain'
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payload = {
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"active": "1",
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@ -199,21 +273,60 @@ if initprimary == True:
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json = payload,
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)
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data = response.json()
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status = data[0]['type']
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try:
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status = data[0]['type']
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status
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except:
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print("Mail Error:")
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print("Mail [MX1] Error:")
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print(data)
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sys.exit(1)
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if status == 'success':
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print("Mail: Created domain.")
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print("Mail [MX1]: Created domain.")
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if status == 'danger':
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print("Mail: Failed to create domain.")
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print("Mail [MX1]: Failed to create domain.")
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print(data)
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#print(f"CREATION: {status}")
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if initprimary == True or dkimok == False:
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if initsecondary == True:
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print("Mail [MX2]: Initializing domain ...")
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URL = server2 + add + '/domain'
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payload = {
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"active": "1",
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"aliases": "20",
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"backupmx": "1",
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"defquota": "1024",
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"description": domain + ' - Failover',
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"domain": domain,
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"mailboxes": "10",
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"maxquota": "2048",
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"quota": "5120",
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"relay_all_recipients": "1",
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"rl_frame": "s",
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"rl_value": "10",
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"restart_sogo": "0"
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}
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response = requests.post(
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URL,
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headers = {'accept': 'application/json', 'X-API-Key': api_key2, 'Content-Type': 'application/json'},
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json = payload,
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)
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data = response.json()
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try:
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status = data[0]['type']
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status
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except:
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print("Mail [MX2] Error:")
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print(data)
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sys.exit(1)
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if status == 'success':
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print("Mail [MX2]: Created domain.")
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if status == 'danger':
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print("Mail [MX2]: Failed to create domain.")
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print(data)
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#print(f"CREATION: {status}")
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#if initprimary == True or dkimok == False:
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if dkimok == False:
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print("Mail: Initializing DKIM ...")
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URL = server + add + '/dkim'
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payload = {
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@ -340,6 +453,27 @@ else:
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print(status)
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print(response.json())
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sys.exit(1)
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print("DNS: Patching MX ...")
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payload = {
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"rrsets": [{"name": domain + ".", "type": "MX", "ttl": "3600", "changetype": "REPLACE", "records": [{"content": "10 3gy.de.", "disabled": False, "name": domain + "."}, {"content": "20 3gy.pl.", "disabled": False, "name": domain + "."}]}]
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}
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response = requests.patch(
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URL,
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headers = {'accept': 'application/json', 'X-API-Key': APIKEY_PDNS, 'Content-Type': 'application/json'},
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json = payload,
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)
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status = response.status_code
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if status == 204:
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print("MX: OK!")
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elif status == 422:
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print("MX: Failed:")
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print(response.json())
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sys.exit(1)
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else:
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print("Unhandled error.")
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print(status)
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print(response.json())
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sys.exit(1)
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print("Done.")
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sys.exit(0)
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