Dear all,

While I try to get the SMTP AUTH to work, I am using "relay_mail_from" feature, to prevent being a open relay.
I know relay_mail_from is not full proof. I am working on SMTP AUTH and STARTTLS Still testing and still not working.. been reading and testing for almost a month.

I have built my mc file with FEATURE(relay_mail_from)dnl. Double confirm the cf file and it's there.
Put the "From:senderdomain.com" in my access file but I still cannot send out emails from this domain.
However if I put the ispdomain.com, then this senderdomain can send out emails.
This will also mean all user from ispdomain.com will be able to relay thru my mail server. I do not want this.

What did I do wrong and how can I rectify it? Is it the sequence in the mc file?

/etc/mail/access
From:senderdomain.com RELAY

/var/log/maillog
Apr 28 09:08:45 buyee sm-mta[4312]: h3S18hCI004312: ruleset=check_rcpt, arg1=<receiver@receiverdomain.com>, relay=ispdomain.com [2xx.x.x.x8], reject=550 5.7.1 <receiver@receiverdomain.com>... Relaying denied
Apr 28 09:08:45 buyee sm-mta[4312]: h3S18hCI004312: from=<sender@senderdomain.com>, size=0, class=0, nrcpts=0, proto=ESMTP, daemon=MTA, relay=ispdomain.com [2xx.x.x.x8]

Any ideas/suggestions will be greatly appreciated.

BTW: anyone know if slackware will bundle sendmail with SMTP AUTH and STARTTLS in next/future version?