Email Authentication refers to techniques that provide the recipient of email messages with certainty that the message actually originated from the stated source of the message. The goal is to limit fraudulent email messages and prevent spoofing.
Many Email Service Providers today use SPF and DKIM signing as a factor in their handling of email messages – messages with SPF and DKIM authentication may see better deliverability and inbox placement.
There are two primary forms of email authentication in use today:
SPF allows an organization to authorize other entities (such as Blue State Digital’s BSD Tools application) to use its domain names when sending email. A domain’s SPF policy record is just a specifically formatted DNS TXT record, commonly containing one or more of the following “mechanisms”:
For example, an SPF record covering email send from the BSD Tools would look like:
yourdomain.com IN TXT "v=spf1 include:bounce.bluestatedigital.com”
DKIM provides a way for an entity (again, such as your organization) to take responsibility for a message, independent of the entity that actually sent the message (which may be Blue State Digital if you are using our BSD Tools software).
To enable DKIM for your email messages, please contact our team at firstname.lastname@example.org. We’ll then generate two cryptographic keys. One of the keys is kept private to BSD and available to the sending server for the signing of mail. The other will be shared with you and is to be made public using your DNS host for use by receiving domains in attempts to validate the signature.
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