Failed to authenticate on SMTP server with username "nextcloud" using 1 possible authenticators. Authenticator LOGIN returned Expected response code 235 but got code "535", with message "535 5.7.8 Error: authentication failed: UGFzc3dvcmQ6 ".)

Failed to authenticate on SMTP server with username “nextcloud” using 1 possible authenticators. Authenticator LOGIN returned Expected response code 235 but got code “535”, with message "535 5.7.8 Error: authentication failed: UGFzc3dvcmQ6 ".)

The user name and password have been confirmed to be correct…

Nginxversion:1.21.4
PHP version:8.0.16
nextcloud version:24.0.1
Mysql version:8.0.24

They are not.

echo UGFzc3dvcmQ6 | base64 -d

:wink:

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How do I use this command?How do I use this command?

On the command line.