Unable to send emails from a particular domain in Plesk: SMTP Error (554): Failed to add recipient: Sender address rejected: Access denied)

Nikita Zubovich

Updated May 14, 2023 06:17

Plesk for Linux kb: technical

Applicable to:

The following error is displayed when trying to send an email from Roundcube:

CONFIG_TEXT: SMTP Error (554): Failed to add recipient "john.doe@example1.com" (5.7.1 <bob.doe@example2.com>: Sender address rejected: Access denied).
The following error is recorded in /var/log/maillog:

CONFIG_TEXT: NOQUEUE: reject: RCPT from localhost[::1]: 554 5.7.1 <bob.doe@example2.com>: Sender address rejected: Access denied; from=<bob.doe@example2.com> to=<john.doe@example1.com> proto=ESMTP helo=

The sender domain is blacklisted in Tools & Settings > Mail Server Settings > Black List:

Log into Plesk;
Remove the affected domain example2.com from Tools & Settings > Mail Server Settings > Black List.

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