Hi all!
I have been organizing a few community events via DownToMeet & some attendees who RSVP using Gmail addresses report not receiving confirmation emails even after checking spam folders. 
This is causing confusion; especially for new members who think their RSVP didn’t go through. 
I have tested it myself and noticed that Gmail sometimes delays or outright filters the emails; even though DownToMeet shows the RSVP as successful. 
This doesn’t seem to happen with other providers like Outlook / Yahoo, so it might be related to Gmail’s filtering or how the email is structured. Checked Message Entire Group Failure Tableau Online Training guide related to this and found it quite informative.
Is anyone else experiencing this? Are there known deliverability issues with Gmail, and is there a workaround (like whitelisting domains or re-sending from a different account)? 
I’d love to ensure better communication for my group.
Thank you !!