I've found that you're fine as long as you pass all the SPF/DKIM steps, have an SSL cert and use your ISP's mail relay.
The biggest issue I face is that occasionally a legit mail server refuses to support SSL/TLS and my server drops the connection. The other 99% of unencrypted mail is spam.
I've found that you're fine as long as you pass all the SPF/DKIM steps, have an SSL cert and use your ISP's mail relay.
The biggest issue I face is that occasionally a legit mail server refuses to support SSL/TLS and my server drops the connection. The other 99% of unencrypted mail is spam.