Overhead in converting to SMTP/MIME format while in transit is my guess Blackberry
From: Benjamin Zachary [mailto:li...@levelfive.us] Sent: Friday, February 24, 2012 02:31 PM To: MS-Exchange Admin Issues <exchangelist@lyris.sunbelt-software.com> Subject: Exchange Attachment Size Issue Hi all, just an odd question. I have a client who sends out this 8.5MB pdf contract , they have been using it for years, recently the last couple of months its getting rejected as being larger than 10mb by many organizations. I did a quick test, and I see in the logs that when the email is sent the transfer is over 11 million bytes . Doing some quick math 8.5MB * 1024 * 1024 = 8912 , but Im seeing 11.4 , 11.3 on the smtp transfer. As a test I sent it to gmail, and sent it back and it was basically the same 11.4 million bytes. I could shrink the PDF size down as a possible option (they make about 30 of these per day) but was trying to figure out what would make an 8.5MB email (no text , tried plain , rich, html) would come across as 11.4 million (or 11 megs). My initial thought was that as people move to the cloud exchange and hosted apps there probably is 10 meg limits , but some of these are clients they do business with for years and is highly unlikely to impose these kind of restrictions (although I am checking). Bottom line the client believes we did something in January to their Exchange 2010 SP1 server that is causing this … Any ideas appreciated … --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com<mailto:listmana...@lyris.sunbeltsoftware.com> with the body: unsubscribe exchangelist --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe exchangelist