Enter your domain to analyze your DMARC record or create a DMARC policy for your domain.
"250ok has built a best-of-breed platform that addresses the concerns of today's data-driven marketers."
VP of Industry Relations at SendGrid
Instantly check an IP or domain against major email blacklists including Spamhaus, SURBL, SORBS, and more.
Enter a CIDR notation to instantly convert it to an IP range.
SPF is a method to prevent email sender address forgery. Enter your domain to analyze its SPF record.
Enter a IP range to instantly convert it to a CIDR notation.
Last year, we brought together our (smaller) team of email experts to discuss some of the most talked about aspects of the email industry. We called those videos our Email Experts Series. It was a fun time, we reminisce about it regularly. So it was only natural we relive the glory days for another season! […]
We’re ready to step to the very Edge of the Inbox… BrightWave’s newest event, of course! We have a long and happy partnership with BrightWave, so we’re thrilled to support a new event in Dallas on October 23 in which the brightest minds in email will gather to discuss innovation, share ideas, and build bonds. […]
Perhaps you knew this already, but maybe you didn’t: in some cases, Return Path supplies a shared URL in the tracking pixel it uses for engagement analytics. Much like the same discussion you see around dedicated versus shared IP environments, there’s a lot to consider when you turn over your sending reputation to people outside […]