/var/log/maillog throwing postfix/postdrop[]: warning: mail_queue_enter: create file maildrop messag

Hello Guys,

If i send test mail for our linux (Red Hat Enterprise Linux Server release 6.5 (Santiago) ) server, getting below error. Maillog file also keep growing. Please let me know the how to fix the issue, I already google it got solution but i couldn't find the below files

[root@hostname sbin]# ls -ltr /etc/init.d/sendmail

ls: cannot access /etc/init.d/sendmail: No such file or directory

Solution:

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/etc/init.d/postfix stop

killall -9 postdrop

chgrp -R postdrop /var/spool/postfix/public

chgrp -R postdrop /var/spool/postfix/maildrop/

postfix check

/etc/init.d/postfix start