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Limiting the Number of Recipients of a Mail Message

Since Parallels Plesk Panel 8.4 version it is possible to limit maximum number of recipients for an e-mail message.

To prevent your users from sending mass e-mail:

  1. Create a file named maxrcpt in the directory $QMAIL_ROOT_D/qmail/control/, where $QMAIL_ROOT_D is the location defined in the /etc/psa/psa.conf file.
  2. Type the number of allowed recipients in this file and save it.

Note: The number defined in the maxrcpt file also affects sending messages to mailing list or mail group subscribers. That is, if you set the value to 100, then only 100 subscribers will receive the message sent to a mailing list or a mail group.

When you no longer need to restrict the number of recipients, delete the maxrcpt file.