Plperlu and sending emails, is it safe? - Mailing list pgsql-general

Hello,

I need to send emails from Postgresql triggers.

I was able to do it with a 'plperlu' function, that calls the 'system'
perl function, that itself calls the 'mail' shell function.

Is is safe to do things like this? Is there a possible concurrent access
that could arise?

Another solution would be to use cron every 5 minutes, and read the
content of a table.

Thanks

Philippe Lang