cloudflare will grab most of your dns entries
but there some important dns entries it misses and theres sfa on the net as to how to get your mail server working on cloudflare and get your mails into inboxes
you need to add 3 text records
spf and dkim records ask your hosting for these
the records will be like these
spf "v=spf1 +a +mx +ip4:208.37.20.21 ~all"
dkim default_domainkey "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5sRx7Ep4UsDEoZ5+yJiUJQ8GPiNnrst
pB45J1UQ7ZxzcfkkfdefederedtsF23HczTWHT//goWcL9Uv5vS5i11k7ejhVH4rjDnkEc6PYnEGxf7K
0y+OOn+97KgMBbChmYWT9/P1aSk08qGguCKiIxCt7tlMzbekC4/Z27vmtY51ZjTQUBrz9g3YGFyQHsLWzj" nU2SaaasacAZsrZKefefeffefe4x4bgYVr1mxWGZd0QFZjBASbfhUgpj+5XZF7CYsKja6XiHaeFDDyzAJqN/4aF
2NnEYhH/sKubQHR8X5E6JGTE8yk2h2mCJSQ+Jy2AilO+1DKVy+srDn7Y22F/0tRwIDAQAB\;
now to enter sfp record on cloudflare
when input you sfp key you need to remove the "" from it
select txt entry
name yourdomainname.com
entry v=spf1 +a +mx +ip4:208.37.20.21 ~all
dkim is a bit tricky if you have a smaller key just remove the " at the beginning of the key if you have a large key like mine remove the " at the beginning and the one in the middle and the space after it
select txt record
name default_domainkey
entry v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5sRx7Ep4UsDEoZ5+yJiUJQ8GPiNnrst
pB45J1UQ7ZxzcfkkfdefederedtsF23HczTWHT//goWcL9Uv5vS5i11k7ejhVH4rjDnkEc6PYnEGxf7K
0y+OOn+97KgMBbChmYWT9/P1aSk08qGguCKiIxCt7tlMzbekC4/Z27vmtY51ZjTQUBrz9g3YGF
yQHsLWzjnU2SaaasacAZsrZKefefeffefe4x4bgYVr1mxWGZd0QFZjBASbfhUgpj+5XZF7CYsKja6XiHaeFDDyzAJqN/4aF
2NnEYhH/sKubQHR8X5E6JGTE8yk2h2mCJSQ+Jy2AilO+1DKVy+srDn7Y22F/0tRwIDAQAB\;
once you have them set wait for dns to propagate then use https://www.mail-tester.com/ to verify the records
once they are done at set add the 3rd record
dmarc
select text
name _dmarc
entry v=DMARC1; p=none; sp=none; rua=mailto:abuse@yoursite.com
change the email addy to your valid email addy
if your mail is not working at all you may need add a mx record
the entry it your mail sever
select mx
name yourdomain.com
entry mail.yourdomain.com or yourdomain.com
