Hello all,  I just joined, because I just started using SA-Exim and spamd, and greylisting on my home mail server (Debian Etch) (where I'm the only user), and although it seems to be performing quite nicely ( i.e. spam is being blocked, greylisted messages get through when they should, or get dumped when they're spam)... There are a  couple complaints (documented below) that have me stumped. Each message produces these complaints from perl:  Jan 22 21:02:03 jhbro spamd[3013]: Use of uninitialized value in    concatenation (.) or string at    /usr/share/perl5/Mail/SpamAssassin/Plugin/Greylisting.pm line 176,    <GEN26> line 57.  Jan 22 21:02:03 jhbro spamd[3013]: Use of uninitialized value in    concatenation (.) or string at    /usr/share/perl5/Mail/SpamAssassin/Plugin/Greylisting.pm line 177,    <GEN26> line 57. and each time, the same 2 messages 2 seconds later. The lines of <a href="http://Greylisting.pm">Greylisting.pm</a> in question are as follows: 172: $connectip =~ /(\d+)\.(\d+)\.(\d+)\.(\d+)/; 173: my ($ipbyte1, $ipbyte2, $ipbyte3, $ipbyte4) = ($1, $2, $3, $4); 174: my $ipdir1 = "$option{'dir'}/$ipbyte1"; 175: # -------------------------- 176: my $ipdir2 = "$ipdir1/$ipbyte2"; 177: my $ipdir3 = "$ipdir2/$ipbyte3"; So clearly, something in the regexp coming up empty. Also, sometimes, (although not at exactly the same time) I see this problem:  Jan 22 21:25:59 jhbro spamd[3013]: Couldn't get Connecting IP    header X-SA-Exim-Connect-IP for message    <<a href="mailto:GRIPSOU75iMaUfOImd10016421f@smtp2.dmz.local"> GRIPSOU75iMaUfOImd10016421f@smtp2.dmz.local</a>>,    skipping greylisting call The absence of a connectip/Connect-IP seems to relate the two complaints.. but I see headers for SA-Exim-Connect-IP in the message, and the Received headers contain IP numbers.. I don't get it. Finally, one more completely independent issue: (that I probably should have put in a separate message.. I can't figure out how to configure things such that rejected messages do not generate an attempt to bounce to the (? always) bogus From: address.  It would appear that I am accepting messages rather than rejecting them at SMTP time, and thus exim things it has to send back an "undeliverable".  Where have I enabled this?? For the moment it causes no serious problems because I can't figure out how to get properly authenticated to my smarthost with exim either! (while. pine talks authenticated esmtps directly to the smarthost with no problems). So, when exim4  tries to bounce a message, the smarthost refuses, so no innocent bystanders are getting hit with collateral spam. But, the day I figure out the auth problem, I'll need a solution to the bouncing problem. If somebody can help me figure this stuff out, I'll be very grateful. - John