Mailman is not distributing email from yahoo

nsjski

• September 08, 2013 20:32

I set up a mailing list with mailman (2.1.15) in cpanel. I subscribed to it with 3 different email addresses - yahoo, hotmail and my work email. All 3 memberships have identical settings. For emails from the hotmail and work accounts, the mailing list works exactly as it should do. For the yahoo account, it returns a post acknowledgement to let me know that it received the email, it even files the email in the archive, but it does not send the email on to the other members. This is with identical emails from all 3 accounts. I'm hoping that someone can explain this to me!

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  cPanelMichael

  • September 09, 2013 15:14

  Hello :) Do you notice any differences with the Yahoo address in "/var/log/exim_mainlog"? You can search for each email address with a command such as: exigrep user@domain.com /var/log/exim_mainlog
  Thank you.

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  nsjski

  • September 10, 2013 00:35

  Thanks for the suggestion, I'll ask my hosting provider to have a look.

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  nsjski

  • September 19, 2013 17:35

  I took a look through the log files and found this in the section where it deals with an email from my yahoo account 2013-09-19 11:01:41 1VMfjh-0001Pu-9R DKIM: d=yahoo.com s=s1024 c=relaxed/relaxed a=rsa-sha256 t=1379602888 [verification failed - signature did not verify (headers probably modified in transit)] 2013-09-19 11:01:41 1VMfjh-0001Pu-9R H=localhost [127.0.0.1]:34283 rejected DKIM : DKIM: encountered the following problem validating yahoo.com: signature_incorrect The next few entries are where the post acknowledgement is sent out to my yahoo email. It looks like DKIM does not like Yahoo. Help!

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  cPanelMichael

  • September 19, 2013 17:55

  That indicates the message header was modified in transit which can prevent DKIM verification. You can turn off the following option under the "ACL Options" tab in "WHM Home " Service Configuration " Exim Configuration Manager": "Reject DKIM failures" This should allow the message to send out successfully. Thank you.

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  nsjski

  • September 20, 2013 11:53

  Success! :) Followed your suggestion and seems to be working now. Thankyou!

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