Bulk e-mail - Postfix rate limiting configuration

Discussion in 'ISPConfig 3 Priority Support' started by macguru, Feb 27, 2018.

  1. macguru

    macguru Member HowtoForge Supporter

    Hi !

    During bulk mailing (straight from Apple Mail) with large attachment I run into bandwidth problem on symmetric DSL line. For short period of time it becomes almost dead.
    Is this enough in main.cf in order to limit simultaneous number of outgoing smtp connection, or I should reconfigure firewall?

    smtp_destination_concurrency_limit = 2
    smtp_destination_rate_delay = 1s
    smtp_extra_recipient_limit = 10
  2. till

    till Super Moderator Staff Member ISPConfig Developer

    If you can limit traffic for smtp with your firewall, then I would use that option.

Share This Page