The plot thickens. This is why it is important to tell us all details. I would still like you to temporarily stop incoming connections from Postini then and see what happens. Like some one else said, you are running a version of Imail subject to vulnerabilities.
John T > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:Imail_Forum- > [EMAIL PROTECTED] On Behalf Of Simon Dodd > Sent: Tuesday, November 27, 2007 10:15 AM > To: Imail_Forum@list.ipswitch.com > Subject: RE: Re[2]: [IMail Forum] Requesting some speedy advice on send error > 10054 > > You won't be able to connect on port 25 - connections are permitted > inbound to it only from our network, certain explicitly allowed hosts, > and from our spam filter (Postini, which is the 64.18.1.0 /24 addresses > that John mentioned): the MX records for the six domains on this server > point to Postini and Postini then relays to us, which allows us to shut > out other traffic on 25. I don't know why you wouldn't be able to > connect on 110, so it's not inconceivable that there's something ganked > up on the pix, but that wouldn't make any difference to me sitting at > the console of the server, I would think, and while I can connect to > 110, I can't connect on 25. > > If the problem isn't the server's resources (memory and CPU use are > nominal) or an unusually large number of connections (there's about > 16,000 users on this server, so the loading I'm seeing in netstat is de > minimis), could the problem be that somehow the number of concurrent > connections that Imail can handle has dropped precipitously? If I unplug > the network cable, after a short period I can connect to localhost 25, > and having plugged it back in again, can continue to connect for a very > short period before it slams back down again. > > ~Simon > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Len Conrad > Sent: Tuesday, November 27, 2007 12:14 PM > To: Imail_Forum@list.ipswitch.com > Subject: RE: Re[2]: [IMail Forum] Requesting some speedy advice on send > error 10054 > > > >No: > > > >E:\imail>telnet 63.134.128.131 25 > >Connecting To 63.134.128.131...Could not open a connection to host on > >port 25 : > >Connect failed > > I can't telnet from Internet to :25, :587, :80, :100, can't ping (do > you have all ICMP blocked?), and port scan of :25, :80, :110, :587 > can't even connect to the IP. > > I don't get "connection refused". > > I'd say somebody scrogged firewall rules somewhere. > > 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/
