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  1. #1
    Join Date
    Nov 2003
    Location
    Amidst several dimensions
    Posts
    4,321

    Lightbulb Measures to counter recent incoming spam surge

    We have yesterday set catch-all for all accounts to :fail: except for the clients that have manually modified those themselves, and applied the following modifications to exim, we thought it would be better to share :

    below is for avoiding exim running the queue when the load is too high :

    deliver_queue_load_max = 25
    queue_only_load = 20

    below is for avoiding excessive connections by spamming hosts :

    smtp_accept_max_per_host = 5
    smtp_accept_max_per_connection = 100

    below is for management of queue size :

    smtp_accept_queue = 150
    smtp_accept_queue_per_connection = 3

    cleanliness tweak :

    strip_excess_angle_brackets = true

    number of queue runners :

    queue_run_max = 3

  2. #2

    Thanks

    Just wanted to say thanks for sharing that information.

  3. #3
    Join Date
    Dec 2005
    Location
    Internet
    Posts
    1,337
    Yeah, good points. Thanks for sharing

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