Dovecot v.2.2.32 and I have configured two imap post-login scripts and it seems like after successfully login scripts are not closed (dovecot_node/imap imap-postlogin : multiple processes are running still) and after some times there are too many processes and the limit is reached (imap proces_limit 1500):

1. #!/bin/sh

case $IP in 10.10.1[1-2][0-7].*) exec "$@" ;; 10.11.2.4[0-9]) exec "$@" ;; esac

CHECK_USER=PGPASSWORD="password" /usr/local/pg952/bin/psql -h 10.11.1.3 -q -t -U postfixuser -d mail -c "select imap_allowed from users where name = '$USER' LIMIT 1"

if [ $CHECK_USER == "t" ] ; then exec "$@" fi

if [ $CHECK_USER == "f" ] ; then exit 0 fi

2. PGPASSWORD="password" /usr/local/pg952/bin/psql -U postfixuser -d mail2 -h 10.11.1.3 -c "select last_auth('$USER','$RIP2','1')" > /dev/null exec "$@"

Regards, Jack