Very interesting, Lyndon. I honestly can't speak enough on my firewall to know if it has any such settings as you mentioned, but I will be discussing this with my guys soon. Our firewall is the Sidewinder G2 v.6.1. It's been a source of a few headaches in the past, so I would not be at all surprised if this problem was on our end.
I'll give your Outlook Express idea a try. Thanks! Andy -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Lyndon Eaton Sent: Thursday, April 22, 2004 4:08 PM To: [EMAIL PROTECTED] Subject: RE: [IMail Forum] Imail not trying secondary mail servers? This can actually be a firewall issue of sorts, or a firewall issue clouding the problem. Firewalls with SMTP proxies can infact tell the difference between human telnet sessions on port 25 and actual mailserver SMTP sessions. May be to do with a mail server being able to send the commands a lot faster than you can type them?? I don't know... but it's true! When I first came across this I was stumped, until I found a setting in the firewall that was either 'disconnect telnet connections' or 'refuse telnet connections' - something like that. When I disabled this setting I was then able to telnet manually. FYI the firewall in question was Raptor. What firewall are you using? One thing you could do to test this is to setup Outlook express with the SMTP server set to the problematic recipients second MX and see if you can send an email to them that way. Hope that helps... Lyndon. > -----Original Message----- > From: Andrew Forbes [mailto:[EMAIL PROTECTED] > Sent: 22 April 2004 21:39 > To: [EMAIL PROTECTED] > Subject: RE: [IMail Forum] Imail not trying secondary mail servers? > > > Yes, when I'm making a telnet connection it is to port 25, > thus: telnet > serverx.domain.com 25 > > Crap, I should have mentioned this, but after I make the > above connection > attempt, I do actually get a connection. I can't believe I > didn't explain > this. > > 220 serverx.domain.com ESMTP Sendmail 8.12.9/8.12.9; Thu, 22 > Apr 2004 15:3 > 1:21 -0500 (CDT) > > The problem is, as soon as I try to type anything at all, like "helo > mydomain.com" it automatically disconnects me, every time. I > can't even type > a single character, it disconnects. > > I understand what you're saying about it being something I'm > doing, but for > the life of me I don't what I'm doing wrong or missing here. > You want a > bigger kicker, I can telnet to the above server just fine > from my desktop on > my internal network and get an okay response from it, I just > can't do it > from any of my servers including the Mail server of course. > This whole thing > is really getting out of my league and my local help just > keeps telling me, > "it's your firewall, talk to those guys". > > Thanks Scott and Travis. > > Andy > > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of R. > Scott Perry > Sent: Thursday, April 22, 2004 2:36 PM > To: [EMAIL PROTECTED] > Subject: RE: [IMail Forum] Imail not trying secondary mail servers? > > > > >Well there is problem number 2. I cannot telnet from my mail > server to > those > >servers. It disconnects immediately. I know, I know, that > screams firewall, > >but I also cannot telnet from my mail server to *any* > outside mail servers, > >even ones that I can email just fine. My hands are tied > because I don't > know > >our firewall well enough to question my firewall guys. > > It's not a firewall issue. > > If you cannot connect from your IMail server to port 25 on > another server, > but IMail can send mail there, the problem is with something > that you are > doing. The remote mailserver cannot distinguish between you > doing it and > IMail doing it. > > It's along the same lines of saying that you can connect to a > website fine > with Netscape but not with IE running on the same server. If > that is the > case, something probably isn't right with IE. In this case, > that would be > the way you are trying to connect. You are trying to connect > to port 25 > (not the default telnet port 23; mailservers rarely have > telnet access)? > > -Scott > --- > Declude JunkMail: The advanced anti-spam solution for IMail > mailservers > since 2000. > Declude Virus: Ultra reliable virus detection and the leader > in mailserver > vulnerability detection. > Find out what you've been missing: Ask for a free 30-day evaluation. > > --- > [This E-mail was scanned for viruses by Declude Virus > (http://www.declude.com)] > > > 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/ > > > ************************************************ > Email checked by UKsubnet anti-virus service > To prevent email abuse & block spam > contact [EMAIL PROTECTED] > Tel: +44(0)8712360301 Web: www.uksubnet.net > Fax: +44(0)8712360300 > > Powered by UKsubnet Internet Service Provider > Business to Business Internet (ISP) > ************************************************ > > ************************************************ Email checked by UKsubnet anti-virus service To prevent email abuse & block spam contact [EMAIL PROTECTED] Tel: +44(0)8712360301 Web: www.uksubnet.net Fax: +44(0)8712360300 Powered by UKsubnet Internet Service Provider Business to Business Internet (ISP) ************************************************ 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/
