Hi,
i am using a mail server software called Post.Office intermail v 3.5.3
Post.Office intermail requires that sendmail be disabled to work...so i am not using sendmail. I am using SMTP (25) and POP3 (110).
The problem with my mail server is that i am currently not sending mails....my user accounts cannot send mail but they can receive mails.
I configured my outlook express with an existing account on my server and when i tried sending mail to my hotmail and yahoo accounts ( or anywhere else) i get this message;
An unknown error has occurred. Subject 'Fw:Test Mail', Account: 'demo', Server: 'mydomain.com', Protocol: SMTP, Server Response: '452 Couldn't process control file', Port: 25, Secure(SSL): No, Server Error: 452, Error Number: 0x800CCC6C
Meanwhile, when i checked the queue log of my post.office ssoftware, there was a long queue of outgoing mails and there were two types of error messages for the bulk ofthem;
1. MX lookup failure
2. Couldn't establish SMTP connection on port 25
Now i tested 1. by checking my resolv.conf file, all entries were ok. I was even able to perform an nslookup of serveral domains on the mail server using one of the
dns entries in resolv.conf.
I dont understand why i had error 2, though.
For reference, note: i have a microsoft exchange server that relays it's mails thru my post.office mail server. The users on the exchange server have no problems sending or receiving mails.Users on the post.office use @mydomain.com while users on exchange use @mydomain.net.
Rather complex senario.
