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Get advanced analytics on everything email.


All of the signals

A single email management platform

Build a customized email management solution.


World-Class Deliverability

Emails that don't reach the inbox are simply wasted opportunities. 250ok tracks every aspect of your email program to ensure that your messages reach your customers.

Expert Services and Support

You won't find any junior-level script readers here. Ask for examples of deliverability issues 250ok diagnosed, triaged, and quickly resolved after other competitors failed.

Complete Customization

Live outside the app with custom email, SMS, Slack, HipChat, PagerDuty, and webhook alerts. Set it and forget it. Focus on what matters to you, free of pointless notifications.

The 250ok Difference:



Us Them
International seed coverage at 100+ mailbox providers
Design integration with Litmus & Email on Acid
Integrated with major email service providers
Spam trap & phishing monitoring with alerts
In-house DMARC monitoring & guidance
Custom Email, SMS, Slack, and HipChat alerts
Compare performance across any campaign, device, or client
Full API or white label integration

Resources for #SeriousSenders


Majority of top 100 law firms operate with ZERO DMARC policy in place.

Today 250ok published the latest in our DMARC adoption report series, DMARC Adoption Among the Top 100 Law Firms, revealing more than half (62%) of top global law firms use no DMARC policy to protect their clients and employees. While indexing higher in their DMARC usage than the SaaS 1000, global e-retailers and higher education […]

The new Gmail redesign is here and we are ready for it.

Well, it’s official. Very early this morning, the Google team officially announced what we’ve been whispering about in the hallways since we heard the first rumblings of change. Gmail is getting a redesign. Lots of the early speculation and leaks were correct, so we’re happy to report we’re here to confirm the new functionalities and […]

CASL goes global.

Canada’s anti-spam law (CASL) announced their first international “undertaking,” or violation of their legislation with an agreed-upon remedy. Ancestry Ireland Unlimited Company, which is Ancestry’s international HQ, violated Subsection 3(2) of the Electronic Commerce Protection Regulations (CRTC) (CRTC Regulations), which “stipulates that the unsubscribe mechanism set out in paragraph 6(2)(c) of the Act must be […]






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