GMail SMTP: no authenticators available?

[Kevin J. McCarthy]

On Wed, Jan 20, 2021 at 04:22:04PM -1000, Baron Fujimoto wrote:
>Our org's email is hosted by Gmail (via GSuite). I had been using 
>neomutt (built from MacPorts) successfully for years. Recently though, 
>I can no longer send email successfully using GMail's SMTP servers. I 
>get the error, "No authenticators available". IMAP still works 
>fine. This change occurred while I had a neomutt session open; it was 
>working one day when I left, but the next day, no bueno.

Do you have $smtp_authenticators set to anything?  If so, trying leaving 
it blank so Mutt can try all possible authenticators it knows about.

You might also enable debugging (-d 2) and see if the debug file gives 
any interesting information.  After enabling TLS, the SMTP server would 
typically send an AUTH line indicating acceptable authentication 
mechanisms, for example:
   250-AUTH LOGIN PLAIN XOAUTH2 PLAIN-CLIENTTOKEN OAUTHBEARER XOAUTH

Since you compiled against SASL, it should be able to handle at least 
LOGIN and PLAIN.

-- 
Kevin J. McCarthy
GPG Fingerprint: 8975 A9B3 3AA3 7910 385C  5308 ADEF 7684 8031 6BDA
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