Wordpress emails suddenly going into spam on multiple servers/sites

So there's a guy I help here and there that has a WordPress store .. He's on one 1and1 server.
There's another guy with a similar site with wordpress hosting from another company.
I also have a couple sites that get an order here and there on a different server/hosting.

All of the sudden a lot of of Woocommerce order emails are going into spam.
Gmail seems the biggest problem (could be because people use them more) but there's also @aols, .edus, etc.

Anyone else have this pop up recently/know the cause?

DKIM and SPF are all setup properly and this just came out of nowhere.

Have you tried to test your emails with a spam score checker?

it normal , only friends added to your email list suppose to hit your inbox

there no stopping it.

unless you add the email names to your list

try email spoofing

Check the antispam databases, someone may have included you.