Recently a couple of users brought to my attention messages they are receiving from a reoccurring customer are in the 2-3 MB size per message. However when they forward the message including attachment it is reduced down to approximately 110k.
Upon investigation I broke some of the incoming messages by header, body, and attachment. With the header I copied the contents and saved it to a text file, the body I copied the contents and saved it to a word doc, and finally the attachment I saved as it originally came. The three items broken down and seperated in files came to a total of appox. 110k.
Is there a way to explain why an incoming message would be 3MB when it is in fact only approx 110k?
As you can imagine over time these incoming messages can accumulate and create a space issue on a users mailbox. Can any one recommend changes I can make to reduce the size of the incoming messages?
I am thinking there could be a change made to the transport or maybe I need to make an addition to the internet message types in Global Settings.
I would appreciate your opinions on this matter.