Thanks JD and Bart for the Info. I checked with Cox and they are definitly blocking port 25. Here is a list of all the ports that COX is currently blocking: Port Transport Protocol Direction Reason for Filtering 25 TCP SMTP Both* SMTP Relays 80 TCP HTTP Inbound Web servers, worms 135 UDP NetBios Both Net Send Spam/Pop-ups, Worms 136-139 UDP, TCP NetBios Both Worms, Network Neighhood 445 TCP MS-DS/NetBios Both Worms, Network Neighhood 1433 TCP MS-SQL Inbound Worms, Trojans 1434 UDP MS-SQL Inbound Worms, SQLslammer 1900 UDP MS-DS/NetBios Both Worms, Network Neighhood 27374 TCP Subseven Both SubSeven Trojan Dan > -----Original Message----- > From: plug-discuss-admin@lists.plug.phoenix.az.us > [mailto:plug-discuss-admin@lists.plug.phoenix.az.us]On Behalf Of Bart > Garst > Sent: Friday, November 14, 2003 9:28 AM > To: PLUG Discuss > Subject: Re: remote e-mail > > > Cox won't let any mail-server (except theirs) be used from any of their > non-bussiness accounts. > > They have details on their website. > > Bart > > On Fri, 2003-11-14 at 09:22, Daniel McAferty wrote: > > Hello PLUG, > > I have remote users sending e-mail thru > > my linux e-mail server. We are using the > > pop-before-smtp (DRAC) to authenticate the > > users ID before allowing relay. > > > > However, one user connects through COX isp > > and he cannot send through. He can pop his incoming > > mail but gets an error: "Unable to connect to the server" > > when sending out. > > > > I do not have this problem from other isp's only the COX > > > > Does anyone else had problems with COX. > > > > Thanks, > > Dan > > > > > > > > --------------------------------------------------- > > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > > To subscribe, unsubscribe, or to change you mail settings: > > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss > > > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > To subscribe, unsubscribe, or to change you mail settings: > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss >