When a Binary file is sent via email it must be converted to ASCII. This is done via MIME encoding. The encoding has an overhead, and that is the difference in the file sizes you are seeing.
-----Original message----- From: MT [EMAIL PROTECTED] Date: Wed, 16 Aug 2006 10:42:51 -0700 To: qmail-scanner-general@lists.sourceforge.net Subject: [Qmail-scanner-general] email size > This maybe an easy one for veteran email administrators. This isn't > an isolated incident, it happens with each email that has an > attachment. Say I send an email to myself with an mp3 attachment. > The log reports this: > > Aug 16 11:22:22 mail.cmc.com qmail-scanner[10831]: Clear:RC:0 > (10.5.4.46):SA:0(?/?): 4.422314 5468648 mtice @ cmc.com mtice @ > cmc.com TEST2 <[EMAIL PROTECTED]> > Track_1.mp3:4047616 1155748939.10842-0.mail:2 orig- > mail115574893777610831:5468648 > > The attachment size is 4047616, but the total size is 5468648. What > is the discrepancy? It seems that this "filler" is applied to each > email with an attachment. Any ideas? > > Thanks, > Matt > > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ > Qmail-scanner-general mailing list > Qmail-scanner-general@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/qmail-scanner-general > ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Qmail-scanner-general mailing list Qmail-scanner-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/qmail-scanner-general
