Spammers can take control of your email and send messages as though you are the one that sent them. This is generally called “spoofing.” If you begin to receive responses or delivery failure messages for emails you never sent, there is a good chance that someone is spoofing your email.
While an SPF record can help prevent spoofing and help get your own emails delivered, it cannot prevent all spoofing and delivery problems. It is still a very important tool in your overall email delivery.
DKIM along with SPF will go a long way in helping the smooth delivery of your email messages. If you have been having problems with email delivery or want to protect against it becoming an issue, let us know and we can add these records to your DNS.