Why @ is forbidden character in the password?

[VelizarVESSELINOV]

Is "@" an RTSP protocol a forbidden character or just rtsp-simple-server definition of forbidden characters?

contains unsupported characters (supported are A-Z,0-9,!,$,(,),*,+,.,;,<,=,>,[,],^,_,-,{,})

[aler9]

Username and passwords now accept additional characters, including the AT character. PR: #1666

[aler9]

added in v0.22.1

[bluenviron-bot]

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