thanks for your help
here the answer of the command:
mail:~# ps -ef |grep sendmail
root 11709 2828 0 14:49 pts/0 00:00:00 grep sendmail
mail:~# ps -ef |grep postfix
root 11719 2828 0 14:49 pts/0 00:00:00 grep postfix
mail:~# ps -ef |grep exim
100 2634 1 0 12:35 ? 00:00:00 /usr/sbin/exim4 -bd -q30m
root 11805 2828 0 14:50 pts/0 00:00:00 grep exim
mail:~# lsof -i tcp:25
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
exim4 2634 Debian-exim 3u IPv4 7773 TCP localhost:smtp (LISTEN)
So if i understand well i have a exim service running on my server. I did a kill -9 2634 on restart zimbra with command zmcontrol start
zmcontrol status
Host mail.acoqp.fr
antispam Running
antivirus Running
ldap Running
logger Running
mailbox Stopped
tomcat is not running
mta Running
snmp Running
spell Running
TomCat is still in error
Thanks a lots for your help |