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Re: [cobalt-users] What is a NOQUEUE connection?



On Tue, 10 Apr 2001, Jay Fesco wrote:

> 
> I apologize for the lame question in advance...
> I've started seeing this message repeatedly in the maillog on my Raq3:
> 
> sendmail[8423]: NOQUEUE: Null connection from mail.ombramarketing.com
> [216.34.74.50]

from ORBS:

ombramarketing.com - direct spam source. hitting ORBS traps. (22 December
2000) 

> I have no idea who 'ombramarketing' is - they have nothing to do with my
> company.

Now you know who, and what they were trying to do (send you spam)

The null connect is probably because your mailserver told them to go jump
cause the from-addr was forged, their mailserver rudely disconnected
without saying 'quit' so you get a NULL connection message

[aside from sending spam, their mailserver violates rfc's, i had issues
with them months ago retrying sending after replying 'no such user']

(Or if you have relaying/accept mail disabled for all domains, your mail
server simple won't accept any mail regardless or who it's to)

> I don't have open relaying turned on for this server, and we don't allow any
> of our users to use the Raq3 for SMTP.  I see this message for 127.0.0.1
> frequently, but I assume that's just the Raq talking to itself.  What's the

Yup...talking to itself

> implication when an actual external mail server is shown?

...'NOQUEUE' means the session resulted in
nothing being added to the mail queue...(eg no messages were
recieved/allowed/accepted)

gsh