Starting and stopping smtpservers from the zmailer script didn't isn't working in 2.99.52pre2. Just added a "-I" in the the proto/zmailer.sh script. proto/zmailer.sh 128c128 < cd /; smtpserver $SMTPOPTIONS -I $POST_OFFICE/.pid.smtpserver --- > cd /; smtpserver $SMTPOPTIONS