SMTP Error (550): Failed to set sender "[email protected]" (Access denied - Invalid HELO name (See RFC2821 4.1.3)).

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jonijoni
Posts: 21
Joined: Wed Sep 30, 2020 4:36 pm

Hallo,

I have this error
SMTP Error (550): Failed to set sender "[email protected]" (Access denied - Invalid HELO name (See RFC2821 4.1.3)).

I tried this https://forum.vestacp.com/viewtopic.php?t=5408
..but did NOT worked

Any Help?
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myVesta
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Posts: 963
Joined: Fri Jun 19, 2020 9:59 am
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Don't use https://ip-adress/webmail/
Use https://hostname/webmail/
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