Issue with sendmail

[Breslau]

Hey,

i'm trying to set up a RHEL AS 3.0 host to relay all mail sent to unqualified names to a central smtp server. i've made these changes to sendmail.mc:

define(`SMART_HOST',`mailhost.mydomain.com')dnl
define(`LOCAL_RELAY', `mailhost.mydomain.com')dnl
define(`MAIL_HUB', `mailhost.mydomain.com')dnl

problem is, if i watch the verbose output from `mail jdoe`, i'll see that the 'RCPT To:' line is referencing the host i am logged into, and not 'mailhost':

>>> RCPT To:<jdoe@myhost.mydomain.com>

anyone know anything else i can do to force the recipient to be at 'mailhost' and not the local machine?

after making changes to the mc file i am recompiling with:

make -C /etc/mail
m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf

thanks!!

 

[ericbrunson]

I believe the RCPT to is a feature of the MUA and not controlled by the MTA. The MTA is usually concerned with the Envelope and the From header, otherwise you couldn't CC someone in a subdomain of your own.

 

[Breslau]

so do you think there's no way to configure it so?

interesting that i can get AIX to work in this manner by modifying the DR attribute in sendmail.cf....

thnx

 

[ericbrunson]

I could be wrong, it's happened before. Then again I gave up dealing with sendmail about 5 years ago.

 

[marsd]

I'm with Eric. Sendmail is the worst piece of software
I have ever encountered. Any replacement is better and
postfix is really pretty nice in this role.

 

[Breslau]

ok, i tried postfix and agree it's easier to config.

i have it forwarding unqualified names the way i want to, but it appears that postfix is not checking its alias file before forwarding a msg. does anyone know how to get postfix to check aliases before doing anything else?

 

[ericbrunson]

Check the options for smtpd_recipient_restrictions in the manual. There are so many of them I can't keep up to date on them.

I use this:

virtual_alias_maps = hash:/etc/postfix/virtual,
        mysql:/etc/postfix/mysql-virtual.cf
unknown_local_recipient_reject_code = 450
smtpd_recipient_restrictions =
        reject_invalid_hostname,
        reject_non_fqdn_hostname,
        reject_non_fqdn_sender,
        reject_non_fqdn_recipient,
        reject_unknown_sender_domain,
        reject_unknown_recipient_domain,
        reject_unauth_pipelining,
        permit_mynetworks,
        reject_unauth_destination,
        permit

I don't have anything specific to require an authorized recipient, it may do it by default.

 

[marsd]

newaliases is the same from sendmail to postfix. Update via newaliases after adding names.