We joined cloudflare last month. Some of our emails go through GSuite, and we have not seen any issues with them, however we are having continuing problems sending and receiving emails through non-GSuite gmail accounts.
Initially the issue was with not being able to get them at all, we solved that by changing the mailserver names as shown here: Cloudflare Not Connecting to Gmail Email - #2 by alecrose55
And using the DNS flush tool recommended here: GMail Delivery failing after switching to CloudFlare - #3 by techops1
We thought they were working properly, as emails were coming through both ways, but then two issues popped up:
Despite having the fetch set to send as the email address (vs the gmail address it’s being fetched to) and selecting that when sending messages, they are arriving in some people’s boxes as the gmail address.
Some emails are getting bounced back a little over 24 hours later, saying that they were unable to connect with the server.
This second issue makes it quite difficult to test if possible solutions are fixing it, as it’s happening randomly, and takes at least a day for us to know that there’s a problem.
Can you help me figure out what our next step should be? I’ve been through a ton of the gmail fetch help topics here, and I can’t find a solution I haven’t already tried.