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some external emails are queued and never send?

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some external emails are queued and never send? - 19.Nov.2007 10:22:39 AM   
midcuk

 

Posts: 1
Joined: 3.Jan.2007
Status: offline
we have an exchange server 2007 64bit and it was experiencing a few minor problems (partly because it was not up to spec to run exchange 2007), we have set up a secondary server with a lot more power (dual dual core 8gb ram) and moved the mailbox's across, the idea is to use the first server as a forwarder for external email (to keep it alive incase server 2 fails), this works fine apart from several external email addresses which just hang in the outbound queue to our provider and do not send. The majority of external email work both inbound and outbound but certain ones just will not send.
anyone got any ideas on how to get them to send ?, do i need to set up some extra smtp relay?.
we have several domains in the same forest and some random messages to one of our sister domains will not send either (yet others will)

any assistance greatly appreciated
Post #: 1
RE: some external emails are queued and never send? - 30.Nov.2007 4:45:14 PM   
rishishah

 

Posts: 784
Joined: 14.Nov.2006
From: Surrey, UK
Status: offline
Try simple checks...

See if you can resolve their MX records on your DNS.

Next use the telnet ipaaddress_of_remote_server 25 from a command window and see if you can cannot to thier smtp server and try and send a mail through telnet.

Finally ensure that they are not black listing you in any way.

_____________________________

Rishi Shah, MCP

Remember to backup before applying the advice. www.saiconsult.co.uk. Happy to provide Professional Exchange Server Consultancy to anywhere in the world.

(in reply to midcuk)
Post #: 2

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