Question for the list - SMTP MAX Size

Kevin Miller Kevin_Miller at
Thu Oct 27 17:55:34 IST 2011

We have a 20 mb limit.  In practical terms however, there's about a 25% overhead with MIME encoding, so 15+ mb may be the real limit.

Kevin Miller                Registered Linux User No: 307357
CBJ MIS Dept.               Network Systems Admin., Mail Admin.
155 South Seward Street     ph: (907) 586-0242
Juneau, Alaska 99801        fax: (907 586-4500

From: mailscanner-bounces at [mailto:mailscanner-bounces at] On Behalf Of Andrews Carl 448
Sent: Thursday, October 27, 2011 8:47 AM
To: mailscanner at
Subject: Question for the list - SMTP MAX Size

What do you typically allow for incoming and/or outgoing messages through your SMTP gateway? What is best practice? 10M, 20M, ??

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