Internal error: invalid IPv6 address

tmcstom

• September 06, 2017 04:13

It appears the latest update to GreyListing's Common Mail Provider list for Comcast IPs have caused Exim to malfunction. The following is shown in /var/log/exim_paniclog
2017-09-06 14:10:36 Internal error: invalid IPv6 address "2001:558:fe16:103:69:252:193::/112" passed to host_aton() 2017-09-06 14:10:45 Internal error: invalid IPv6 address "2001:558:fe16:103:69:252:193::/112" passed to host_aton() 2017-09-06 14:10:48 Internal error: invalid IPv6 address "2001:558:fe16:103:69:252:193::/112" passed to host_aton() 2017-09-06 14:10:51 Internal error: invalid IPv6 address "2001:558:fe16:103:69:252:193::/112" passed to host_aton() 2017-09-06 14:10:52 Internal error: invalid IPv6 address "2001:558:fe16:103:69:252:193::/112" passed to host_aton() 2017-09-06 14:10:57 Internal error: invalid IPv6 address "2001:558:fe16:103:69:252:193::/112" passed to host_aton()
This is causing mail delivery issues. The entries are IPv6 for Comcast.
"2001:558:fe16:103:69:252:193:0/112" # Comcast "2001:558:fe16:19:96:114:154:160/123" # Comcast "2001:558:fe21:29:69:252:207:0/121" # Comcast "2001:558:fe21:30:162:150:58:0/112" # Comcast
To correct this we had to disable Comcast in Common Mail Providers. I have submitted a cPanel bug for this.

• 

  mike-s

  • September 06, 2017 09:56

  Update to cPanel 66.0.18 solves this ... if it"s important ;)

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  tmcstom

  • September 06, 2017 09:57

  Looks like cPanel is already aware of this issue, open case CPANEL-14175

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  mike-s

  • September 06, 2017 10:02

  I have opened a support ticket 120 minutes ago ... it"s assigned to a staff member, still no response :( Disabling "comcast" solved this problem at our cPanel 64.x.x boxes. Thanks for this tip!

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  rack::SPEED

  • September 06, 2017 10:22

  We experienced the same issue since the last upcp run. :/ To fix this issue use the CLI:
  whmapi1 cpgreylist_save_common_mail_providers_config comcast=0 && whmapi1 cpgreylist_untrust_entries_for_common_mail_provider provider=comcast
  

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  cPanelMichael

  • September 06, 2017 18:02

  Hello, Internal case CPANEL-15672 is open to address an issue where Comcast's IPv6 ranges in the common mail providers list are not parsed correctly. I'll monitor this case and update this thread once we publish a resolution. In the meantime, the default common mail providers list we publish has been reverted so the following command will work to solve the issue:
  /scripts/setup_greylist_db --update_common_mail_providers
  Thank you.

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• 

  tivilardo

  • September 06, 2017 19:10

  Today I stopped receiving external emails, so I had to update Cpanel version. Problem solved :)

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  cPanelMichael

  • September 07, 2017 14:58

  Hello, This is now solved with a publication to the AutoFixer repository. You can run the following command to manually invoke this AutoFixer script if you do not have cPanel updates enabled:
  /usr/local/cpanel/scripts/autorepair recoverymgmt
  Thank you.

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• 

  Phurx

  • November 23, 2017 09:13

  Hi, none of these worked for me, also disabled ipv6. This worked for me: vi /etc/greylist_common_mail_providers Removed these lines: 495 "2001:558:fe16:103:69:252:193::/112" # Comcast 496 "2001:558:fe16:19:96:114:154:160/123" # Comcast 497 "2001:558:fe21:29:69:252:207::/121" # Comcast 498 "2001:558:fe21:30:162:150:58::/112" # Comcast :wq (save) /etc/init.d/exim restart

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