thunderbird send mail problem

sobers_2002 · Veteran Joined: 16 Mar 2004 Posts: 1128

hi

i am having this problem since long. I have tried everything. even removed all settings and then added them again but it doesn't work. The smtp server is working just fine, but it just doesn't seem to work on thunderbird somehow. Kindly tell me how to correct it. I can recieve mails just fine. I just can send them

thankS
Saurabh
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tost · Guru Joined: 10 Dec 2005 Posts: 506

Without any error message we can´t help you

sry

tost

sobers_2002 · Veteran Joined: 16 Mar 2004 Posts: 1128

i am sorry about the link not being correct earlier. I have corrected the link now in the 1st post. That image shows the error about smtp server refusing connection.
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luker0 · n00b Joined: 15 Oct 2005 Posts: 44

Does the SMTP server require login credentials? Can you look into the mail.error file (assuming Gentoo server) and provide the error generated by the SMTP server when you try to send. Sometimes it is also a reverse DNS issue. Sendmail in particular will not accept an smtp message from a machine for which it cannot resolve a name.

sobers_2002 · Veteran Joined: 16 Mar 2004 Posts: 1128

i can't check the smtp server logs. But what u said about the server not being able to resolve the name seems a possibility. When i login to my own computer using ftp (ncftpd server running) and when i check the login using the who tool of ncftpd i get my machinename.domainname that i have set instead of the ip. Since this entry is not there on the dns of the network it cannot be reversed to get the ip.
i think this might be happening on the smtp server also. How can i correct this?? I don't want to remove the domanname part 'cauz ncftpd needs it to have user limit of 5. (i prefer not changing ncftpd).

thanks
Saurabh
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luker0 · n00b Joined: 15 Oct 2005 Posts: 44

The easiest way to solve it is to have all your machines listed in the reverse DNS zones. As long as sendmail can do a host lookup and match the IP to a name it will be happy.

sobers_2002 · Veteran Joined: 16 Mar 2004 Posts: 1128

i don't have the perms or authority to do that

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luker0 · n00b Joined: 15 Oct 2005 Posts: 44

You are going to have to describe the environment you are in if you want more help with this.

How is DNS setup? Are you allowed to have this machine on the network? Who manages the SMTP server, your ISP, your company?

What is your network topology? Firewalls anywhere? And so on...

sobers_2002 · Veteran Joined: 16 Mar 2004 Posts: 1128

university lan. All servers managed by the institute. firewalls for the intranet : none. I guess that's all the info ....
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magic919 · Posted: Wed Feb 15, 2006 6:59 pm Post subject:

Why not telnet to port 25 on mail server and send the message 'by hand'. At least you are likely to get some info regarding where and why it fails.

Thnikkaman · n00b Joined: 30 Jun 2004 Posts: 63

I am having the exact same problem. With mutliple smtp servers that work fine with other clients. I know because one of the servers I helped set up. I believe that this is definitly a thunderbird problem. I have tried re-creating my smtp server settings, and occasionally it will work for one or two e-mails before it fails again. I was hoping to find a solution other than "Its a server error".
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