Mails generated by contact forms or scheduled tasks are not sent: You are not allowed to use sendmail utility

Kuzma Ivanov

Updated January 13, 2026 19:02

Plesk for Linux kb: technical ABT: Group A

Applicable to:

Mails generated by contact forms or scheduled tasks are not sent. The following error messages appear in /var/log/maillog:

CONFIG_TEXT: journal: plesk sendmail[22347]: handlers_stderr: DATA REPLY:554:5.7.0 The message could not be sent. You are not allowed to use sendmail utility.#012REJECT
journal: plesk sendmail[22347]: REJECT during call 'limit-out' handler
The option Turn on limitations on outgoing email messages is enabled at Tools & Settings > Mail Server Settings.

The sendmail utility is disabled.

Allow users and scripts to use Sendmail:

For one subscription

Log in to Plesk.
Go to Tools & Settings > Outgoing Mail Control > Subscription > example.com > Change Limit:
Set the sendmail usage policy to Custom settings for the subscription and enable the option Allow using Sendmail for scripts and users on this subscription.

For all domains