Recently I sometimes receive messages like the one below, when users try to send mails through one of ezmlm mailing lists. Apparently the problem occurs, because the user sending the e-mail, does this using a @gmail.com sender address. And then the receiver protests, because s/he can see, that the originating server is not a valid gmail server.
What can I do to get around this?
Thank you,
Jesper Holck, Denmark
2013-09-16 21:48:23.744237500 delivery 14589: failure: 173.194.70.26_failed_after_I_sent_the_message./Remote_host_said:_550-5.7.1_Unauthenticated_
email_from_google.com_is_not_accepted_due_to_domain's/550-5.7.1_DMARC_policy._Please_contact_administrator_of_google.com_domain_if/550-5.7.1_this_
was_a_legitimate_mail._Please_visit/550-5.7.1__http://support.google.com/mail/answer/2451690_to_learn_about_DMARC/550_5.7.1_initiative._f3si176762
49eet.329_-_gsmtp/
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