> Could someone explain exactly why IMAIL has trouble sending email
> to major mail providers at times. My smtp fails all the time
> and must resort to sending through my default mail host.
Often, the major mail providers have flaky mail servers that go down for hours/days at
a time (@yahoo.com is the major problem).
It sounds, though, like your problem may be something different. You should go to the
Knowledge Base at http://support.ipswitch.com and enter "stack connect fail" (WITH the
quotes), and look at the entries. If you are using 2 NIC cards, look at the first
one. Otherwise, look at the second one and make sure your DNS server(s) are working
properly.
If you aren't sure if your DNS server is working properly, let us know the IP address,
and we can check it for you.
> I just set up my IMAIL server about 12 hours ago and my reverse
> DNS lookup has not yet propagated to all DNS servers. Is this
> why? Should I be patient and wait for reverse DNS to propagate?
That probably is not the problem. Very few mail servers do reverse DNS lookups. If
they do, they should not just "hang up" on you (which is happening here), they should
return an error message.
>Is there a setting I can check to make sure this is my problem? Many
>domains work, but the big ones seem to reject the most:
>
>i.e. @home.com, @yahoo.com, etc..
It may just be them. You can check your logs to see the IP addresses that IMail is
trying, and you can try connecting to them at port 25. If you cannot connect, then
either your DNS server is returning the wrong IP address, or the @home.com or
@yahoo.com server is down.
>02:08 20:57 SMTP-(00000130) Trying yahoo.com (0)
>02:08 20:57 SMTP-(00000130) Stack connect fail "216.115.108.245"
>02:08 20:57 SMTP-(00000130) Stack connect fail "216.115.108.243"
FYI, I didn't see those two addresses listed as MX records for Yahoo, but they look
close to others. Yahoo's MX records are wacky; I just saw the same IP address listed
as priority 1 and priority 2, which is just plain stupid (in my opinion).
--
-Scott
Declude: Anti-virus and Anti-spam solutions for IMail. http://www.declude.com
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