Hi, hashcash-sendmail appears to struggle with long stamps. When i issue hashcash -m -b20 -r andreas.mattheiss@xxxxxxxxxxxxxxxx I get hashcash stamp: 1:20:110628:andreas.mattheiss@xxxxxxxxxxxxxxxx::LvM42IeOvGyF8fIY:0000000000000000000000000000v3E (The xxx are not what was used for minting the stamp) So far so good. If I have hashcash-sendmail do that for me, I check the logfile Tue Jun 28 22:11:09 2011 hashcash-sendmail: made token X-Hashcash: 1:20:110628:andreas.mattheiss@xxxxxx::ZD6WiVAJVEPAJCs6:0000000000000 0000000000000000000000005QGb This displays awkward here; in fact there are two spaces after the group "0000000000000" and "0000000000000000000000005QGb" in the logfile; maybe you want to try it with a slightly longish email adress and check the logfile yourself. At least it displays like that, and there must be something amiss, since procmail gets back to me with ------ pipe to |/overspill/sekundaer/bin/procmail /home/andreas/.procmailrc generated by andreas@localhost ------ examining stamp: 1:20:110628:andreas.mattheiss@xxxxxx::ZD6WiVAJVEPAJCs6:0000000000000 0000000000000000000000005QGb skipped: stamp invalid rejected: no valid stamps found check: failed Asking hashcash-sendmail for invoking hashcash with -Z 1 appears to solve the problem; there are no spaces in the thus generated stamp in the logfile and the procmail-recepie checks ok, but the overall length of the stamp is uncomfortably close to where the break used to occur. Can someone please have a look as to what may be going on there; unfortunately I am not a perler. Regards Andreas -- LISTER: Look, face it, man. It's just not possible to fry an egg using a bicycle-powered hair dryer. CAT: Sure it is! It's just YOU never pedal fast enough! Come on, keep pumping! One last try!