Incorrect message size

[ccg-security]

Hi Cisco Support,

May we request for your assistance as we are having a weird problem on message tracking regarding "Message Size". We send an 15MB file but on message tracking it add another 5MB file size to make it 20MB even we sent an 15MB attachment file only.

Please see message tracking logs.

Thanks!

[Ken Stieers · Accepted solution]

This document explains what is going on.

https://www.cisco.com/c/en/us/support/docs/security/email-security-appliance/118499-qa-esa-00.html