Consequences of increasing email size from 16M to 25M

[Dave Helton]

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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