compatibility problem while using aliyun mail as authentication source

[darren]

Description

Use smtp as external authenticate source, if authenticate fails eg wrong password, gitea shows 500 error

aliyun mail returns error 526 while using wrong password

...ers/web/auth/auth.go:218:SignInPost() [I] Failed authentication attempt for xxxx@xxx.com from 127.0.0.1:39512: (code: 526, msg: Authentication failure[0])

Gitea Version

1.20

Can you reproduce the bug on the Gitea demo site?

No

Log Gist

No response

Screenshots

No response

Git Version

No response

Operating System

No response

How are you running Gitea?

TAGS="bindata" make build

Database

None