Gmail password reset FPs

[Joe Quinn]

We've been having password reset emails marked as spam by Gmail. We've 
tried rephrasing the email body/subject/from email, to no avail. We've 
even tried registering as a bulk sender 
(https://support.google.com/mail/contact/bulk_send_new?rd=1) and 
googling for anyone having similar issues. Has anyone else dealt with 
this before and managed to get it fixed?