wxiaoguang 3aacc9b4ac
Revert unrelated changes for SMTP auth (#21767) (#21768)
Backport #21767

The purpose of #18982 is to improve the SMTP mailer, but there were some
unrelated changes made to the SMTP auth in
d60c438694

This PR reverts these unrelated changes, fix #21744

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
2022-11-10 16:11:56 -05:00
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