[Mailman-Users] Delayed delivery

[Brad Knowles]

On 12/6/07, Márcio Luciano Donada wrote:

>  I believe that the problem is the configuration of postfix, with the
>  parameter smtpd_recipient_limit = 15, the mailman sends initially for
>  the first 15 members of the list and seguinda, after some time for the
>  others. There were some to improve the performance without that I have
>  to change the smtpd_recipient_limit, because that would be difficult
>  to change because of some usuáriso I have on my network, it may
>  increase the time that the mailman is the delivery of e-mails, group
>  of 15 destinations.

Increasing this value isn't likely to help you 
very much.  This is the flip side of things like 
enabling VERP and full customization, see FAQ 
4.12 at 
<http://www.python.org/cgi-bin/faqw-mm.py?req=show&file=faq04.012.htp>.

Only for those sites where you have a very large 
number of recipients at the same address (e.g., 
hundreds of AOL users) will you see a benefit by 
having this number be higher.


Anyway, pay close attention to everything in that 
FAQ entry, because the original author went 
through a lot of math to explain how these things 
break down, and what kind of performance gain (or 
loss) you could expect by changing the value of 
things like SMTP_MAX_RCPTS.

-- 
Brad Knowles <brad at shub-internet.org>
LinkedIn Profile: <http://tinyurl.com/y8kpxu>