On Mon, Feb 21, 2022 at 06:10:51PM -0600, Ion wrote:
I tried both set smtp_url ="smtp://smtp.fastmail.com:465" and set
smtp_url ="smtp://smtp.fastmail.com:587" and got "SMTP session failed:
530 5.7.1 Authentication required".

You'll need to add your username to the $smtp_url, so something like
  set smtp_url = "smtp://ionm...@eml.cc@smtp.fastmail.com:587"

I used the same password as IMAP as the Fastmail help page tells me "Your app-specific password. You cannot use your regular Fastmail password."

Yes that's right.

So does the "set ssl_force_tls =yes" not cover authentication?

No that just makes sure encryption is used for 'smtp://' URLs.

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Kevin J. McCarthy
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