Enable SMTP Authentication

hd2000 · 12-06-2006, 01:22 PM

I follow some of the guide on the Internet to enable SMTP Authentication, after messing with it, it does not shown 250-AUTH LOGIN PLAIN when i telnet to mail.winstonjourney.com on port 25

here is my sendmail.mc, hope someone can pinpoint the problem, thanks

Code:

divert(-1)dnl
include(`/usr/share/sendmail-cf/m4/cf.m4')dnl
VERSIONID(`setup for Red Hat Linux')dnl
OSTYPE(`linux')dnl
dnl define(`SMART_HOST',`mail.winstonjourney.com')
define(`confDEF_USER_ID',``8:12'')dnl
dnl define(`confAUTO_REBUILD')dnl
define(`confTO_CONNECT', `1m')dnl
define(`confTRY_NULL_MX_LIST',true)dnl
define(`confDONT_PROBE_INTERFACES',true)dnl
define(`PROCMAIL_MAILER_PATH',`/usr/bin/procmail')dnl
define(`ALIAS_FILE', `/etc/aliases')dnl
define(`STATUS_FILE', `/var/log/mail/statistics')dnl
define(`UUCP_MAILER_MAX', `2000000')dnl
define(`confUSERDB_SPEC', `/etc/mail/userdb.db')dnl
define(`confPRIVACY_FLAGS', `authwarnings,novrfy,noexpn,restrictqrun')dnl
define(`confTO_IDENT', `0')dnl
define(`confAUTH_OPTIONS', `A p y')dnl
define(`confAUTH_MECHANISMS', `DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
TRUST_AUTH_MECH(`DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
define(`confCACERT_PATH', `/etc/mail/certs')dnl
define(`confCACERT', `/etc/mail/certs/cacert.pem')dnl
define(`confSERVER_CERT', `/etc/mail/certs/sendmail.pem')dnl
define(`confSERVER_KEY', `/etc/mail/certs/sendmail.pem')dnl
define(`confCLIENT_CERT', `/etc/mail/certs/sendmail.pem')dnl
define(`confCLIENT_KEY', `/etc/mail/certs/sendmail.pem')dnl
FEATURE(`no_default_msa',`dnl')dnl
FEATURE(`smrsh',`/usr/sbin/smrsh')dnl
FEATURE(use_cw_file)dnl
FEATURE(use_ct_file)dnl
FEATURE(`mailertable',`hash -o /etc/mail/mailertable.db')dnl
FEATURE(`virtusertable',`hash -o /etc/mail/virtusertable.db')dnl
FEATURE(`access_db',`hash -T<TMPF> -o /etc/mail/access.db')dnl
FEATURE(`blacklist_recipients')dnl
FEATURE(local_procmail,`',`procmail -t -Y -a $h -d $u')dnl
FEATURE(always_add_domain)dnl
FEATURE(redirect)dnl
EXPOSED_USER(`root')dnl
DAEMON_OPTIONS(`Port=smtp,Addr=0.0.0.0, Name=MTA')dnl
FEATURE(`accept_unresolvable_domains')dnl
LOCAL_DOMAIN(`localhost.localdomain')dnl
MAILER(local)dnl
MAILER(smtp)dnl

gilead · 12-06-2006, 01:30 PM

You don't say which documentation you were following. There's a good on this site at http://www.linuxquestions.org/questi...d.php?t=224543 which is well worth checking. There are other things which need to be configured apart from your sendmail.mc file for SMTP AUTH to work properly.

hd2000 · 12-06-2006, 01:50 PM

I follow the guide from the link you mentioned, however no luck

gilead · 12-06-2006, 08:34 PM

Did you get any errors during the process? For example, did the step to check whether sendmail had SASL support correctly compiled in work?

Code:

/usr/sbin/sendmail -d0.1 -bv root

Did you modify all of the required files and not just sendmail.cf? For example, SASL needs support for login and plain compiled in - it also needs to have /usr/lib/sasl2/Sendmail.conf configured to use it.

Somebody who knows more about this than I do may be able to spot the problem, but I'd need more info if possible please.

hd2000 · 12-07-2006, 06:04 AM

I've solved it. I remove and reinstall the sendmail RPM, start from fresh installation which have SASL support. before I enable the 'plain login', the auth command is supported.

Then follow the guide mentioned, able to get myself running with smtp auth and email sent to my gmail. only thing is i need sendmail to enforce the smtp auth for the email client, not sure how to do it.

Thanks Steve for your help. Appreciate it