JIRA - how to disable outgoing mail for specific user?

[S]

Hi all,
Could you please help me (if this possible of course) with the next issue: I need disable outgoing mail for specific user, BUT I need receive messages from this user (in other words: incoming mail - enabled; outgoing mail - disabled).
How can I do this?

This is external user and he is only used for task creation via email. But very often this mailbox overfilled so we get many unwanted emails...

I have tried to do this via /etc/aliases (map to local user) but without success...

Is this possible or not?

Many thanks!

[Bob Swift OSS (Bob Swift Atlassian Apps)]

How to limit notifications for automation actions

[S]

Thanks Bob, This is not easiest way (for me) but I will try.