Re: master 6216c7a: Allow specifying that SMTP auth should always be used

[Robert Pluim]

>>>>> On Fri, 26 Jul 2019 14:07:18 +0200, Lars Ingebrigtsen <address@hidden> 
>>>>> said:

    Larsi> Robert Pluim <address@hidden> writes:
    >> If the user can customize smtpmail-servers-requiring-authorization,
    >> then they can also add an appropriate entry to .authinfo to make
    >> smtpmail do authentication, so why is such a variable needed?

    Larsi> smtpmail always tries first without auth, and then starts looking 
around
    Larsi> for credentials if the SMTP servers says "give me credentials".

I was convinced thatʼs not how it worked, but the code disagrees with
me.

    Larsi> We could make it start sending credentials immediately if there's an
    Larsi> .authinfo entry, but that'd be a behaviour change, and the user may 
have
    Larsi> specified just "machine my.mail.host" for (for instance) IMAP usage, 
and
    Larsi> there's no auth on SMTP, in which case the SMTP server may deny the
    Larsi> connection.

And again I was convinced we did port matching, but again thatʼs not
how auth-source works when the machine entry doesnʼt have a port.

    Larsi> And besides, the user may be typing in the credentials and not using
    Larsi> .authinfo.

I appear to be 0 for 3 here. Oh well.

Robert