RE: Formula to calculate mail size after the MIME conversion

[Rob Wilcox]

I’m not sure if there is a defacto equation, or rather I’m not sure what it is..   But I’ve seen quotes of “around 30%”..   http://home.swipnet.se/~w-31455/abpc/abpcpost.html http://www.inet-one.com/cypherpunks/dir.96.05.16-96.05.22/msg00367.html http://www.roads.lut.ac.uk/lists/pgp-mime/1996/02/0027.html   That’s just a couple of the examples of the increase in size.   Thanks Rob   -----Original Message----- From: ONG Liang Bu (CSC) [mailto:[EMAIL PROTECTED]] Sent: 18 May 2002 08:47 To: MS-Exchange Admin Issues Subject: Formula to calculate mail size after the MIME conversion   Hi,   Saw someone post abt the max size of mails.  Just ask a related question here.   Anyone has a formula to calculate the actual file size after conversion to mail attachment.  Say as example I have a Word doc, since this is binary file, it is 8-bits.  When I attach this Word doc as mail attachment, since SMTP protocol only supports ASCII, the MIME protocol will convert the 8-bits binary to ASCII - 7 bits, so definitely the size of the file will grow.   I have been telling my users to expect a 12-15% growth, based purely on my own estimate.  Just check anyone has the exact formula or any reference URL?   Thanks, much appreciated, wish everyone has a nice weekends. Ong LB System Consultant Computer Services Centre National Institute of Education Sinagpore   List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm