Some of our sent emails are not being received to the recipients (inbox or spam folder) but we never get any bounce backs. Most of the time our emails are received but some of our corporate clients are not receiving our emails. One of their IT departments flagged our email domain as malware but our website is free of malware. Our calendar invitations are always received and we are able to receive all emails. Please help!
according to the MX records you seem to be using Google for receiving (and presumably also for sending) e-mails, so (to me) it’s not clear what you expect from Cloudflare here.
I’d contact Google and/or your e-mail administrator.