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Thread: Zimbra Server Email Sending

  1. #1
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    Default Zimbra Server Email Sending

    How to increase the delivery rate in zimbra.I want to send 7-8 lac emails per day is it possible.What I need to do on my side so that delivery rate will get increase.

  2. #2
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    How many emails ? Does lac mean thousand or millions ?

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    Lac means millions.Is it possible any tweak around.

  4. #4
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    Have a look at /opt/zimbra/postfix/conf/master.cf.in and post the line that says something like
    Code:
    smtp      inet  n       -       -       -       5       smtpd

  5. #5
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    smtp inet n - n - - smtpd

    Above is my line from master.cf

  6. #6
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    Okay, so your current default is 100 connections serving both inbound and outbound. If you change the 7th field from a '-' to something like 200 that will double the inbound/outbound rate that your server will process. Always make incremental changes as you also need to keep an eye on memory, cpu and bandwidth aswell. If you increase it too much your system could grind to a halt. Ideally you would be better setting up additional MTAs aswell so you can share the load between them, or better still a SMTP load balancer between multiple MTAs.

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