DKIM is a technical standard for email authentication that helps ensure email wasn’t altered in transit. SparkPost’s DKIM Validator is the easiest way to verify your messages have working DKIM signatures.
More Resources for Developers
Along with our email tools, we’ve created a wealth of resources to help developers hit the inbox.
The Developer’s Survival Guide to Email
Email has a number of messy details and idiosyncrasies that turn out to be gotchas for developers. We highlight 10 things you might not realize about email.read more