I use sendgrid since my port 25 is blocked
Before with the same setup on my old box, everything sent fine, now every time I send an email to Gmail and yahoo SPF goes neutral (Used to be pass) and DMARC fails
also, I noticed that on gmail it says “via sendgrid.info” however before it never did that
My mailinabox runs the DNS for the domain, and on the status page everything is ticked except the two port 25 errors (which is why I have sendgrid, and I cant ask for the limit to get removed) and reverse DNS (cant do anything about it)
I can still receive mail like normal
Old box
New box