On Tue, 23 Sep 2003 12:18:31 -0400 (EDT), Birl wrote: >Excuse my ignorance. I tried to pook around some B64 attachements in my >email files for an answer. > > >Are you stating that an = > >1) should not appear in B64 at all >2) should not appear in the middle of a line, but only at the EOLN >3) should only appear at the end of a B64 file See the corresponding RFC. The number of characters in a base64-coded text must be a multiply of 4. So ='s are used if there aren't enough characters and are added at the end of the text. = is not a valid character inside Base64 and an encoder should stop with an error or stops decoding. >Answering that question could help me better determine how to write a >procmail filter for this. /.*=[^=]/ (untested) Regards, Lothar -- Lothar Kimmeringer E-Mail: mailbody@kimmeringer.de PGP-encrypted mails preferred (Key-ID: 0x8BC3CD81) Always remember: The answer is forty-two, there can only be wrong questions!