Telnet Delivery works, Sending from the Internet does not

[skyvuu]

Hi all,

I am no Postfix master, but I have set up a mail system with postfix,qpopper and cyrus-sasl (using the sasldb2 database )on Debian Etch.

This setup is for virtual alias domains.

The sasl smtp-auth part of the setup works fine and I can send mail from say, Thunderbird, to any email address. The trouble is in receiving emails.


I believe I have set up dns correctly, but am wondering whether my problem is a dns problem or an smtp problem?

In dns, web and mail are served by separate hosts,i.e. if
I have a hosted domain say skytips.com its mail server is
mailhost.differentdomain.com.

I test smtp using telnet to a valid e-mail address, test@skytips.com which goes to the unix account test, on mailhost.differentdomain.com:

"telnet mailhost.differentdomain.com 25 etc"
(with test@skytips.com)

This works and the mail get delivered to /var/mail/test and /var/spool/mail/test

I test pop3 same thing, success, I can authenticate.


However, when I send and email from my gmail account to test@skytips.com the mail is not delivered, and I get the error message

"Error sending message.....


The reason of the delivery failure was:

Can not connect to SMTP server <skytips.com> "

Implying that the gmail server tried to connect to am SMTP server <skytips.com>.

Why is it trying to connect to <skytips.com>? The mail server for skytips.com is mailhost.differentdomain.com or at least is supposed to be?

I do not understand this, especially as the setup was working for the first few days.

Grateful for any input, am somewhat drained of energy,have not slept well for 3 days, my clients are out of mail.

My previous Sarge setup worked fine.

Best Ever

 

[BulletSeed]

The MX record on the skytips.com DNS zone is missing. There is nowhere for your DNS server to direct mail to. Create an MX record (and an A record as well) for your mail host.

 

[BulletSeed]

Nevermind, I guess you just did that while I was writing the reply.