biggiesmallzz
asked on
Externally Sent Mail Problem
My company is having difficulty sending mail to one particular domain. Upon the users sending the mail, they get a message back stating the following:
You do not have permission to send to this recipient. For assistance, contact your system administrator 5.7.1 smtp;550 5.7.1 user@domain.co.uk>...Rejec ted - TRUSTmanager
The Rejected - TRUSTmanager explaination i have not come across before. The message is also being generated by by mail gateway server.
Regards
Big
Can someone please shed some light on this?
You do not have permission to send to this recipient. For assistance, contact your system administrator 5.7.1 smtp;550 5.7.1 user@domain.co.uk>...Rejec
The Rejected - TRUSTmanager explaination i have not come across before. The message is also being generated by by mail gateway server.
Regards
Big
Can someone please shed some light on this?
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Your Domain Name or IP Adderss is Blocked
ASKER
Hi
I have checked my mailservers ip address against http://www.mxtoolbox.com/blacklists.aspx & http://www.kloth.net/services/dnsbl.php and found that it had not been blacklisted on either site.
Any other ideas?
I have checked my mailservers ip address against http://www.mxtoolbox.com/blacklists.aspx & http://www.kloth.net/services/dnsbl.php and found that it had not been blacklisted on either site.
Any other ideas?
Be aware they were the first two links that fell out of Google for me. There may be other lists you are on. At this point, the quickest solution may be to talk to the other domains techies. they will know what is blocking you & why.
ASKER
Thanks.
It turned out that the receiving mail server is using MIME SWEEPER of which TrustManager is a module. Once their I.S. reconfigured it, it was fine.
It turned out that the receiving mail server is using MIME SWEEPER of which TrustManager is a module. Once their I.S. reconfigured it, it was fine.