Re: sendmail AUTH

kalevi@kolttonen.fi (Kalevi Kolttonen) writes:

Wolfgang Agnes <wagnes@jemoni.to> wrote:

Thanks!  I don't know how to investigate it further after I type
STARTTLS.  I believe that after I issue STARTTLS, I'd have to speak the
TLS protocol, which I don't know how.

>
Please install a perl-based tool called "swaks". From the manual page:
>
Swaks - Swiss Army Knife SMTP, the all-purpose SMTP transaction tester
>
and then use its "-tls" option.
>
With swaks, all SMTP testing becomes very easy indeed.

Pretty useful.  Thanks!

By the way, I think you're thinking is good---you might be thinking that
sendmail wouldn't want credentials traveling in the clear, but I believe
it does accept that if we compile it with AUTH PLAIN, say.  I think
saying STARTTLS before will not be required.

>
You never *compile* Sendmail with "AUTH PLAIN", those are m4 configuration
file options.

Point taken.  On the other hand, we could perhaps call the process of
writing the sendmail.cf file as a certain compilation?  Because we read
a file that seems to be written in a certain domain-specific language
and then a program writes the sendmail.cf, which looks like a
lower-level type of language. :)