I was just about to suggest the same. Try configuring the SMTP service to not accept connections from 64.18.1.0/24 and see what happens.
John T > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:Imail_Forum- > [EMAIL PROTECTED] On Behalf Of Daniel Donnelly > Sent: Tuesday, November 27, 2007 9:00 AM > To: [email protected] > Subject: RE: [IMail Forum] Requesting some speedy advice on send error 10054 > > I used the IP here to attempt a connection. On SMTP it timed out. > On POP3 it connected, but with a significant delay. I did get > this response: > +OK X1 NT-POP3 Server joink.com (IMail 8.05 4399-11) > > You are running a version that is subject to attack and my guess > is you have been hit... Are those 64.18.1.X addresses part of > your network? > > I'd say that something is using up resources, slowing the POP3 > connection and slowing SMTP to such a degree as clients > timeout... > > Hmmm... not able to ping, at this time... > > HTH, > Daniel Donnelly > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Simon > Dodd > Sent: Tuesday, November 27, 2007 11:34 AM > To: [email protected] > Subject: RE: [IMail Forum] Requesting some speedy advice on send > error > 10054 > > > Thanks, but already confirmed that with the Imail SMTP service > disabled, > nothing else is running and connections aren't accepted on port > 25. With > it enabled, the supposition that _some_ users are getting > connections > seems to be confirmed by netstat: I see several dozen sections to > port > 25, for example: > > TCP 63.134.128.131:25 24.206.192.33:3085 ESTABLISHED > TCP 63.134.128.131:25 63.134.135.222:25602 ESTABLISHED > TCP 63.134.128.131:25 63.134.146.4:4564 ESTABLISHED > TCP 63.134.128.131:25 63.134.146.4:4616 ESTABLISHED > TCP 63.134.128.131:25 63.134.146.4:4770 TIME_WAIT > TCP 63.134.128.131:25 63.134.146.4:4776 ESTABLISHED > TCP 63.134.128.131:25 63.134.149.193:1108 TIME_WAIT > TCP 63.134.128.131:25 63.134.161.163:4260 TIME_WAIT > TCP 63.134.128.131:25 63.134.177.202:4733 TIME_WAIT > TCP 63.134.128.131:25 64.18.1.30:34353 ESTABLISHED > TCP 63.134.128.131:25 64.18.1.30:60389 ESTABLISHED > TCP 63.134.128.131:25 64.18.1.31:48099 LAST_ACK > TCP 63.134.128.131:25 64.18.1.31:53128 LAST_ACK > TCP 63.134.128.131:25 64.18.1.31:55431 ESTABLISHED > TCP 63.134.128.131:25 64.18.1.32:46421 ESTABLISHED > TCP 63.134.128.131:25 64.18.1.33:58792 ESTABLISHED > TCP 63.134.128.131:25 64.18.1.33:60265 ESTABLISHED > TCP 63.134.128.131:25 64.18.1.33:60711 ESTABLISHED > TCP 63.134.128.131:25 64.18.1.35:39097 LAST_ACK > TCP 63.134.128.131:25 64.18.1.35:43824 ESTABLISHED > TCP 63.134.128.131:25 64.18.1.35:44261 ESTABLISHED > TCP 63.134.128.131:25 64.18.1.35:44340 ESTABLISHED > TCP 63.134.128.131:25 64.18.1.35:44994 ESTABLISHED > > Yet I still can't open a connection on port 25 (yes, using > telnet), even > from the local machine, and users are still complaining (quite > rightly, > so far as I can see) that they can't send. > > ~s > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Len > Conrad > Sent: Tuesday, November 27, 2007 11:05 AM > To: [email protected] > Subject: RE: [IMail Forum] Requesting some speedy advice on send > error > 10054 > > > >there's nothing else that _should_ be active on 25 > > netstat -an | more > > and also google for "TCP View". > > http://www.download.com/3001-2085_4-10558709.html?spi=97a8a3e0722 > 1b8fe77 > 82895d7b8cd234&part=dl-AdvancedP > > > telnet ip.ad.re.ss 25 > > ... to see if anything answers. > > Len > > > > To Unsubscribe: > http://www.ipswitch.com/support/mailing-lists.html > List Archive: > http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ > To Unsubscribe: > http://www.ipswitch.com/support/mailing-lists.html > List Archive: > http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
