exim

Domain abc.com has an outgoing mail suspension. Message discarded.

  2018-05-25
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2018-05-25 18:55:46.797 [9730] 1fMBwM-0002Rr-MX ** test@gmail.com F=<cpaneluser@host.abc.com> R=enforce_mail_permissions: Domain abc.com has an outgoing [...]

No Such User Here

  2016-06-08
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Message not sent. Requested action not taken: mailbox unavailable Server replied: 550 Verification failed for <user@domain.com> No Such User [...]

Connection rejected: SPAM source domain.com is manually blacklisted.

  2016-06-08
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Requested action not taken: mailbox unavailable Server replied: 550 Verification failed for <user@domain.com> Connection rejected: SPAM source [...]

The mail server could not deliver mail to user@domain.com. The account or domain may not exist, they may be blacklisted, or missing the proper dns entries.

  2016-06-08
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Message not sent. Requested action not taken: mailbox unavailable Server replied: 550 Verification failed for <user@domain.com> The mail server could [...]

Could not complete sender verify callout

  2016-05-25
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2016-02-11 09:33:49 H=external.mailserver.com [86.75.30.9]:54245 X=TLSv1:DHE-RSA-AES256-SHA:256 CV=no F=<root@host.domain.com> temporarily rejected RCPT [...]

Can’t log in to email on cpanel server

  2015-06-23
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Had this error in the /var/log/maillog: Jun 23 10:30:54 host authdaemond: Cpanel::MailAuth: Mail user 'username@domain.com' is suspended. It makes it sound [...]

Connection rejected: SPAM source domain.com is manually blacklisted

  2015-06-08
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Requested action not taken: mailbox unavailable Server replied: 550 Verification failed for <test@domain.com> Connection rejected: SPAM source [...]