IP Range to CIDREasily convert an IP range into CIDR blocks.
"250ok has built a best-of-breed platform that addresses the concerns of today's data-driven marketers."
Len Shneyder
VP of Industry Relations at SendGrid
Instantly check an IP or domain against major email blacklists including Spamhaus, SURBL, SORBS, and more.
SPF is a method to prevent email sender address forgery. Enter your domain to analyze its SPF record.
Enter your domain to analyze your DMARC record or create a DMARC policy for your domain.
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 […]
This is a great question we get from many marketers trying to understand how adding 250ok to their current marketing mix will change the game. With so many options for managing email campaigns, our platform and services can provide a different set of benefits depending on what you use, whether it’s a traditional email service […]
