Monday, August 24, 2020

[yawumgdu] Gmail on Alpine in Debian Bullseye

Version 2.21+dfsg1-1.1 of alpine (the MUA) in Debian Buster is not new enough to access Gmail.  (Error message given below.)  Version 2.23+dfsg1-1 in Debian Bullseye (currently Debian Testing), is new enough to read Gmail (IMAP).  It's a little clunky but works.  I haven't tried sending email (SMTP).

There was a failure validating the SSL/TLS certificate for the server

The reason for the failure was

self signed certificate (details)

We have not verified the identity of your server. If you ignore this certificate validation problem and continue, you could end up connecting to an imposter server.

If the certificate validation failure was expected and permanent you may avoid seeing this warning message in the future by adding the option


to the name of the folder you attempted to access. In other words, wherever you see the characters

in your configuration, replace those characters with

Answer "Yes" to ignore the warning and continue, "No" to cancel the open of this folder.

After selecting and pressing Enter on (details):

Host given by user:

Reason for failure:

self signed certificate

Certificate being verified:

/OU=No SNI provided; please fix your client./CN=invalid2.invalid

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