Hi all!
I'm having nightmares trying to make the amazing OMV Notification Plugin working with Gmail. No problem with the plugin, but Gmail (bad Google, no donut for you!). After some internet digging, I realize this is something related to Gmail SMTP security policies which could be solved using some kind of certificate (or something like this).
I wonder is someone here had this pain in neck and could manage to solve it, would like to share the journey. Maybe I'll give to you the Google's forfeited donut... 
Thanks a lot!