Solved

Mime encoding for exchange 2007

Posted on 2014-01-10
2
322 Views
Last Modified: 2014-01-13
I am using Symantec cloud to block email attachements over 10 meg. Likewise I have a ten meg restriction on my exchange 2007 server for inbound mail. When I send a 10.2 meg attachment symantec does its job and replies back to sender and recipient with a notification the mail was blocked.

When I send a 9.7 meg document symantec allows it through however exchange blocks the mail and rejects it with an error to the sender. I had to lower the attachment size to 7.1 before I could get it through exchange even though exchange is set to 10 meg.

It would seem like exchange is calculating the whole mail size and adding MIME encoding overhead of 33% or thereabouts.

I was thinking about increasing exchange limit to roughly 13/14 meg to account for this but I am unsure if 1) MIME encoding is the same calculation for all attachment formats. 2) is there anyway to tell exchange to look at only actual attacment size of the attachment.
0
Comment
Question by:Sid_F
2 Comments
 
LVL 63

Accepted Solution

by:
Simon Butler (Sembee) earned 500 total points
ID: 39770781
The encoding overhead is different for the various formats. You cannot change the Exchange behaviour, so the if you want to allow 10mb attachments most people will set the limits to 15360kb. This covers most of the encoding overheads for the various file formats.

Simon.
0
 
LVL 5

Author Closing Comment

by:Sid_F
ID: 39776919
Thanks.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Exchange 2010 searching 3 39
exchange, outlook 2 28
setting up IMAP/POP3 via Exchange 2010 3 0
Exchange, script 10 0
Lotus Notes – formerly IBM Notes – is an email client application, while IBM Domino (earlier Lotus Domino) is an email server. The client possesses a set of features that are even more advanced as compared to that of Outlook. Likewise, IBM Domino is…
Marketers need statistics and metrics like everybody else needs oxygen. In this article we explain how to enable marketing campaign statistics for Microsoft Exchange mail.
In this video we show how to create an email address policy in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.:  First we need to log into the Exchange Admin Center. Navigate to the Mail Flow…
This video discusses moving either the default database or any database to a new volume.

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

25 Experts available now in Live!

Get 1:1 Help Now