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Cannot send mail

leif.hammarstrom
leif.hammarstrom
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Sending a mail results in the following message:

Sending of the message failed. An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: Disallowed HELO string.

Sending a mail results in the following message: Sending of the message failed. An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: Disallowed HELO string.

Modified by leif.hammarstrom

Chosen solution

Found the solution in

https://kb.mozillazine.org/Replace_IP_address_with_name_in_headers

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leif.hammarstrom
leif.hammarstrom Question owner
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Chosen Solution

Found the solution in

https://kb.mozillazine.org/Replace_IP_address_with_name_in_headers