one of our customer cant send e-mails to our exchange server.
the error message is:
SMTP error from remote server after transfer of mail text:
host: mail.myhost.de
Administrative prohibition
In my UTM-mail-manager I can find that message as "rejected: spam (confirmed)".
I have enter the recipient in my whitelist with no effect.
After that, I have also send an e-mail from my private gmx-account to my company-address, with the same content. this message was also rejected. I have make some tests and found out, that the emails was rejected, if the hompage-link of the recipient was in the email-signature. But the same message send as text-format is gone.
2014:12:08-13:10:00 mail exim-out[6575]: 2014-12-08 13:10:00 Start queue run: pid=6575
2014:12:08-13:10:00 mail exim-out[6575]: 2014-12-08 13:10:00 End queue run: pid=6575
2014:12:08-13:10:28 mail exim-in[4913]: 2014-12-08 13:10:28 SMTP connection from [10.0.0.1]:45969 (TCP/IP connection count = 1)
2014:12:08-13:10:28 mail exim-in[6683]: 2014-12-08 13:10:28 [10.0.0.1] F= R= Accepted: from relay
2014:12:08-13:10:28 mail exim-in[6683]: 2014-12-08 13:10:28 1***92-0001jn-2h work R=SCANNER T=SCANNER
2014:12:08-13:10:40 mail smtpd[6703]: SCANNER[6703]: 1***92-0001jn-2h Completed
2014:12:08-13:10:41 mail exim-out[6705]: 2014-12-08 13:10:41 1***9E-0001k7-ES => other-email P= R=dnslookup T=remote_smtp H=mail.otherdomain.de [213.160.27.85]:25 C="250 Requested mail action okay, completed"
2014:12:08-13:10:41 mail exim-out[6705]: 2014-12-08 13:10:41 1***9E-0001k7-ES Completed
any idea?
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