My favourite mail client is mutt. At work we have an Exchange mail server, and I wanted to use mutt for my work e-mail. Today it works. (I am using Fedora 19 beta)

Our mail server supports IMAP access, so reading mail is easy. But the difficult part, is sending e-mails.

In a first attempt, I tried this in the mutt configuration:

set smtp_url="smtp://mylogin@our.local.mailserver:587"
set smtp_pass="mySecretPassword"

I think this has worked for me somewhere in the past, but now I get the error message 'No authenticators available.' So I had to try something else.

Now I am using msmtp to send my e-mails. I installed it from the repositories:

yum install msmtp

I created a configuration file: ~/.msmtprc:

account myaccount
host webmail.our.domain
from my.email@our.domain
auth ntlm
tls on
tls_trust_file /etc/ssl/certs/ca-bundle.crt
user mylogin
ntlmdomain MYDOMAIN
password "mySecretPassword"
port 587
account default : myaccount

In the mutt configuration, I removed the smtp-setttings, and added

set sendmail="/usr/bin/msmtp"

And guess what. It just worked (TM) :-)