- Syntax Verification - Domain/MX Record Checker - Catch-All Email checker - Temporary Unavailability Detection - Role Account Detection - Improved Yahoo Email Verification - Free Domain Email Checker - Detailed SMTP Response - High-Performance Real-time API - Greylist Domain Detection - Lowest Turnaround Time

* Faster emailing than ever: Mixmax slash commands let you do everyday things, and not so everyday things, directly within a message. Search for and insert data from any 3rd party app or your internal systems without leaving the keyboard. * Stand out from the crowd: Create gorgeous, custom link previews so recipients never have to context-switch. Any resource you refer to within an email will come to life, be it product detail pages, social media posts or exciting announcements. * Finally, interactivity in email: Eliminate back & forth by creating interactive emails that let people take action directly. Make your app work in the message itself, no matter which client recipients are using.