Consequences of increasing email size from 16M to 25M
dave at KD0YU.COM
Thu Jul 19 23:20:02 IST 2012
I just gotta chime in on this,
!!!!!!!!!!! email is NOT a file transfer system !!!!!!!!
if I were in your shoes...
1) you have a 25m ceiling imposed by the outsourced entity, fine.
2) 15 to 20 meg seems to be the defacto standard, varies according to who's server
your email goes through. (it's a courtesy thing)
3) your students have to send mail through your systems before they go anywhere, impose YOUR limit.
bottom line... IMNSHO ... don't change a thing!
--Dave Helton, KD0YU
> -----Original Message-----
> From: mailscanner-bounces at lists.mailscanner.info [mailto:mailscanner-
> bounces at lists.mailscanner.info] On Behalf Of Robert Lopez
> Sent: Thursday, July 19, 2012 3:54 PM
> To: MailScanner discussion
> Subject: Consequences of increasing email size from 16M to 25M
> We recently outsourced student email to a service that allows an email size
> up to 25 Mbytes.
> Our email gateways run postfix + MailScanner + SpamAssassin + clamd.
> They now direct employee email to an internal Exchange system and student
> email out to the service.
> Currently postfix has "message_size_limit = 16777216" and I believe
> I cannot simply change this to 26214400 without adversely affecting
> MailScanner, clamd, and especially SpamAssassin.
> I am most concerned about changing MailScanner.conf parameters such as
> TNEF Expander maxsize, ClamAVmodule Maximum File Size, Max Spam
> Check Size, Max SpamAssassin Size, etc. that are all now at default
> MailScanner values.
> Any suggestions of what would be best practice are solicited.
> Robert Lopez
> Unix Systems Administrator
> Central New Mexico Community College (CNM)
> 525 Buena Vista SE
> Albuquerque, New Mexico 87106
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