These are mostly base64 encoded for transmission by the email client.  
That increases the size by an average of 25%.

Second, I would recommend getting a company account at a file storage 
service like icloud, dropbox, etc and open up a directory for others to 
drop files into.

Lyle Giese
LCR Computer Services, Inc.

On 03/25/14 17:19, Glenn Meadows wrote:
> Thanks, I moved it up to 50, it was at 20, the message in question was 
> supposedly 7.51meg. <hmmm>.
>
> -- 
> Glenn Meadows
> Mayfield Mastering
> 2825 Erica Place
> Nashville, TN 37204
> 615-383-3708
>
> On 3/25/2014 5:18 PM, surgemail-support wrote:
>> Try:
>> g_msg_max "50mb"
>>     ChrisP
>>
>>     Where is, or what is the key for attachment size maximum on
>>     incoming email messages?
>>     I can't seem to locate scrolling through the settings, and think
>>     I've got it too low. We get large PDF attachments for music work,
>>     and have one that's bouncing, telling the sender it's too big....
>>     <grr>. (we're small, have tons of storage space so it's not a
>>     major issue).
>>     Thanks
>>     --     --     Glenn Meadows
>>     Mayfield Mastering
>>     2825 Erica Place
>>     Nashville, TN 37204
>>     615-383-3708
>>
>
>