Unable to reliably send email
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User's on my network are unable to reliably connect to out going mail server SMTP, using either of the ports our hosting company gave us 25 or 587. In the states table when I look at the traffic going to 25, or 587 I see TIME_WAIT:TIME_WAIT. I also have static outbound NAT rules that I had to turn on for the VoIP system. When I reset the States table users can send email for a while, but it stops a few hours after. I read a post here about the same thing and the person found their problem to be incoming DNS requests, this isn't the case here. I will add off Site I can connect to email 100% of the time, it is only when on local network with PFSense router.
Running 2.1-RELEASE (i386) on an Intel(R) Core(TM) i3-3240 CPU @ 3.40GHz with 3471 MB of memory.
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Is your static outbound NAT rule sufficiently narrow that it only catches VoIP traffic? Could it be causing problems for smtp? Too many clients using the same source port perhaps?
Steve
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I disabled Static Outbound NAT just for testing and still having the same problem. No I have no idea what could be causing it.
