The procmail stuff I sent yesterday was slightly broken. It seems that keyservers respond well to 'mget 36E61FB1', but not 'get 36E61FB1' To auto retrieve keys, use these two procmail recipies: # auto key retreival :0BW * -----BEGIN PGP KEYID=|/usr3/adam/bin/sender_unknown # I have an elm alias, pgp, points to a keyserver :0ac |elm -s"mget $KEYID" pgp sender_unknown #!/bin/sh # sender_unknown returns a keyid, exits 1 if the key is known OUTPUT=`pgp -f +VERBOSE=0 +batchmode -o /dev/null` echo $OUTPUT | egrep -s 'not found in file' EV=$? if [ $EV -eq 0 ]; then echo $OUTPUT | awk '{print $6}' fi exit $EV