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Postfix Archives: Re: Limiting concurrent connections to one ho

Re: Limiting concurrent connections to one host

Subject: Re: Limiting concurrent connections to one host
From: Rafi Sadowsky (rafimeron.openu.ac.il)
Date: Thu Jan 13 2000 - 15:05:13 CST

1) you should really limit the maximum network servers on the netscape
mail server
for NS messaging 3.X on the Admin page choose
 "Server Configuration" -> "System Configuration" change
   "Default Maximum Number of Concurrent Network Servers"
   "Default Maximum Number of Concurrent Local Processes"

to something that your server can take

2) to limit postfix parallelism for a single SMTP destination
(you can replaces the "1" on the "slow" line with maximum concurrency that
the host can take ( I typically use 1(==no concurrency) for MS exchange)) 

---
in master.cf add a "slow" line
==========================================================================
# service type  private unpriv  chroot  wakeup  maxproc command + args
#               (yes)   (yes)   (yes)   (never) (50)
#
==========================================================================
slow      unix  -       -       -       -       1       smtp
---
in transport map for each "slow" destination
==
mail.domain			slow:[nsmail.domain]
==(this will disable MX lookups for nsmail.domain 
    - loose the square brackets to enable MX processing_

This archive was generated by hypermail 2b27 : Thu Jan 13 2000 - 15:07:28 CST