Over the last few days emails sent from my domain (including my website) failed citing:
AES128-GCM-SHA256:128 CV=yes: SMTP error from remote mail server “550 Invalid sender”
I’ve contacted my host who are passing the buck saying it’s a Cloudflare issue. I suspended Cloudflare on my site and emails are now working (and the host says they’ve changed nothing…)
I have 100s of emails listed as “Failed” in my cPanel Track Delivery that I desperately need sent out - they aren’t stored on my site as Gravity Forms has data deleted after submission for security. Is there someway to re-push these emails out from Cloudflare or do you have any other ideas?
Any help is greatly appreciated.