lists-qmail at maexotic
Feb 4, 2010, 12:53 PM
Post #5 of 5
On Thu, Feb 04, 2010 at 03:05:47PM -0500, Jon Daily wrote:
> >> I'm having trouble with a few different mail servers accepting my mail now.
> > What do the logs say?
> delivery 97: deferral:
Then it is irrelevant what your headers say, as the remote SMTP server
rejects you connection even before the greeting (HELO) is sent.
1) a braindead antispam setup. Some mailservers ignore errors before
greeting as permanent errors and do a MX backoff to the next
mailserver with a longer distance. But this doesn't look like it,
as messaging.sprintpcs.com does not list other MX records.
2) your IP address is on a blacklist. Spam appliances behave that way.
A check at http://www.dnsbl.info/ didn't give a block for 126.96.36.199
but checking with sendbase.org
reveales a *poor* reputation for you IP address/net block.
I guess this is the reason for the rejects.
If I connect to
from my (poor reputation) DSL box at home I get also rejected immediately.
If I connect from my (good reputation) mailserver I get a SMTP dialogue.
I have no idea how to clean up your status with senderbase.org,
especially as there are no records for your IP, but the bad reputation
seems to result from the overall bad reputation of the net block.
> > Received: from unknown (HELO localhost) (10.177.66.74)
> > looks kinda strange.If the app server connects to localhost (as the
> > HELO suggests) it shouldn't read 10.177.66.74 but 127.0.0.1.
> > Spammers like to use localhost, as a lot of misconfigured servers
> > allow relay access from hosts named "localhost", even if its IP address
> > is not 127.0.0.1.
> So, the app server sends the smtp message to the mail server which
> then sends it out. The app server is a different machine than then
> mail server. Does this still look mis-configured? If so, what do I
> need to do in order to get the mail server to recognize the app
Sorry, missed that app server and mail server are on different machines.
So the IP address listed is ok. The HELO *should* be irrelevant anyway.
But as written above, this setup does not cause the problems.