Inbound emails being denied

Unanswered Question

Inbound emails are down. Outbound works.

the ASA 5510 shows this in the log.

Deny tcp src outside:209.252.33.110/38723 dst inside:63.243.80.11/25 by access-group "inside_access_out" [0x0, 0x0]


One minute everything was ok then it stopped working.

In the inside interface(incoming rules), i have a rule that states (source) email server name (destination) any (service) smtp (action) permit.


In the outside interface(incoming rule), i have a rule that states.. (source) any (destination) public ip of email server (service) smtp (action) permit.


Any ideas?


thanks


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darkbeatzz Wed, 05/20/2009 - 04:38
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From the mail server/appliance can you telnet to a destination server on port 25? Is DNS working ok on the server

darkbeatzz Wed, 05/20/2009 - 04:39
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From the mail server/appliance can you telnet to a destination server on port 25? Is DNS working ok on the server/mail appliance

handsy Wed, 05/20/2009 - 08:48
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There is nearly always a cause for these problems.

Have you checked around the time this issue occurred for anything strange in the ASA syslog events?

Was the IOS upgraded?

Did someone add/remove a command?

Did you check 'show service-policy' and see if 'inspect esmtp' drops was incrementing?


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