sniffer Dan
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Simon Dodd Sent: Tuesday, November 27, 2007 1:15 PM To: [email protected] 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: [email protected] 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/
