Sendmail smtp_auth and RBL lists

[Paul Howarth]

Neil Marjoram wrote:
> Heres what I have :
> 
> FC2
> Stock sendmail
> Stock MailScanner
> 
> Sendmail is configured with smtp_auth, and listens on port 25 for local
> hosts and I use MSA on port 587 for my roaming users. (Thanks to
> everyone on this list for info on how to do this). All seemed fine until
> one of my roaming uses plugs into an ISP which is in an RBL. Sendmail
> does not seem to offer the chance to login before this message is
> deposited in the maillog : 
> 
> Nov 10 19:39:29 hostname sendmail[17448]: ruleset=check_relay,
> arg1=****.btcentralplus.com, arg2=127.1.0.2, relay****.btcentralplus.com
> [11.11.11.11], reject=550 5.7.1 Rejected: 11.11.11.11 listed at rbl-
> plus.mail-abuse.ja.net
> 
> If I put the IP address in the /etc/mail/access file and allow RELAY
> sendmail allows the user to login and away go the emails. So it seems
> that an RBL check is executed before the login. I guess I have got an
> option wrong somewhere, I have attached the sendmail.mc file to the
> email.

(snip)

> dnl FEATURE(delay_checks)dnl

Try uncommenting FEATURE(delay_checks) and see if that helps.

Paul.