attachment size does not tally

[Shao Ming]

Hi!

has anyone encounter this before?

I have send a simple one liner text e-mail to myself - attaching a 3,374,573
bytes file (on windows m/c).
However, in the qmail log file - it register as 4,559,695 bytes.

I attributed, initially, that it is due to the fact that they are on
different file systems... but wonder how can
the differnece be more than 1MB.

Or is there any other reasons for the difference in size?

thanks
/shaoming