Good news for all Android users using the official messaging app for texting (SMS, MMS) and char (RCS). Android Messages now offers text services via browser like the one being offered by popular cloud-based messaging apps.
Digitally sign your email with DKIM (DomainKeys Identified Mail) and help prevent email spoofing on your side. DKIM adds a private key which stays in your server and a public key that stays in your DNS record. The outgoing email header that you send gets encrypted and the recipient servers then retrieve the public key to decrypt the incoming headers and verify that the messages really comes from your domain and was not altered while it is on transit.