> > The mail server requires authentication for off-campus email
> > addresses, but not for on-campus addresses. In order to make this
> > work I have added the mail server to the /etc/exim4/passwd.client
> > with login/password information.
> >
> > This worked great until a few days ago, when the off-campus mail
> > from my system stopped going through. I hadn't changed anything.
> > ... is there a way for me to force authentication even
> > if the mail server does not request it?
> See the docs in the section "Authentication by an Exim client". In
> particular, hosts_require_auth, and you may wish to take advantage of
> the fact that that setting is expanded before use.
Thanks for the help. I've tried adding the hosts_require_auth option
in the file /etc/exim4/conf.d/transport/30_exim4-config_remote_smtp_smarthost:
remote_smtp_smarthost:
debug_print = "T: remote_smtp_smarthost for $local_part@$domain"
driver = smtp
hosts_require_auth = smtp.nw.uwplatt.edu
hosts_try_auth = <; ${if exists{CONFDIR/passwd.client} \
{\
${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$host_address}}\
}\
{} \
}
[file continues...]
Now when I try to send a message, the SMTP exchange is shown below. Is the problem with the smarthost server? Thanks for any help!
Matt
--------- Sending mail with hosts_require_auth ---------
Connecting to smtp.nw.uwplatt.edu [137.104.128.96]:25 ... connected
SMTP<< 220 ironman.uwplatt.edu ESMTP
SMTP>> EHLO localhost.localdomain
SMTP<< 250-ironman.uwplatt.edu
250-8BITMIME
250 SIZE 52428800
SMTP>> QUIT
LOG: MAIN
== mike0405@??? R=smarthost T=remote_smtp_smarthost defer (-42): authentication required but server did not advertise AUTH support
