Re: [cobalt-developers] POP3 Problem -- qpopper

["Gerald Waugh" <gerald@xxxxxxxxx>]

Kevin Schaefer <kevin@xxxxxxxxxxxxxxxxx> wrote Wednesday,
April 11, 2001 2:15 PM


> My problem is that one of my virtual domains has been
using five e-mail
> accounts since their site was set up two months ago
without any problems.
> Mysteriously, Monday it did not work.  They get a message
saying something
> to the effect of "the server has cut off their
communication or has timed
> out".  This error always happens no matter what time of
day or how you try
> so we have ruled out their internet connection.  However,
I can set up a pop
> mail client on my end at my shop and pop mail from any one
of their accounts
> with no trouble.  So it is like there is some kind of a
block on their DSL
> IP address not allowing qpopper to communicate with that
IP address.  Does
> this sound like I have been hacked?  All other mail
accounts were find -- no
> other customers are complaining that they cannot receive
their e-mail.
> Recommendation on direction?

I assume the message they get is from their email client.
Are these 5 users attempting to use email from the same
location (IP)?
Do they get through if they retry?
What do your log files say, is there a entry for there
failed attempt?
Is it possible that the users (if from same IP) nameservers
reverse lookup
is not working?
Sorry, mostly questions, but I think we need more
information.
Gerald