FIX - Qmail -- cannot start qmail-send is already running

cannot start qmail-send is already running

Above error is usually caused when you restart qmailctl, & force start qmail-send. This happens because of qmail-send is not completely shutdown as qmail-remote is busy with remote mail delivery Or qmail-local is taking time to write local mail which is unlikely.


To quickly fix you can kill qmail-remote process & wait for it to restart.

Best option is to wait for qmail-remote to complete mail delivery, once delivery is completed qmail-send should start gracefully.