Check if email works properly with MxToolbox.com

mxtoolbox_icon Email is reliable (as much as can be, which is little) when used with single service. When you add consolidated address on personal domain and change hosting there are things that can go wrong.

MxToolbox is site that provides online tools to check if email works properly on specific domain.

What it does

Site takes email’s domain (part after @) as input.


Then it allows to check:

  • if there is proper MX record set for domain;
  • if SMTP functions resolve and work properly;
  • if server IP listed in blacklists.

Strong features

Set of tools is very comprehensive and easy to use. Aside from server checks there are more nice extras like parser for email headers and even free monitoring service (hadn’t tried it yet, but might be nice addition to Sucuri monitor).


It may take some effort and googling how exactly email works to interpret results, but overall site is easy to use and can be very convenient.

Link http://www.mxtoolbox.com/

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  • Wendy Young #

    Thanks for posting about our Free Tools. We actually are planning on adding some tool tips to help explain the results for people unfamiliar with specific issues. We'd appreciate any other feedback that you may have, especially recommendations for any new tools that you would find useful or ideas on how to make results more intuitive. Thanks again!
  • Rarst #

    @Wendy Young Thanks for dropping by. :) As for ideas I guess you could use nice graphical explanation of how email works exactly (I hope I am not horribly missing it somewhere on site). email mechanics are kinda confusing (at least comparing to simple server->browser of web). Anyway personally I am content with your tools as is, maybe readers will use chance to pick your brain about something. :)
  • xdmv #

    Good info! Thanks!
  • Rarst #

    @xdmv You are welcome. :) By the way please include something relevant to post in comment, most of "thank you" comments are spam so such aren't likely to get through.
  • Wendy Young #

    Rarst, I will let my Engineers know about your suggestions and if they are implemented they will be available on the site soon! Thanks for the feedback, we really appreciate it. Wendy
  • Rarst #

    @Wendy Young Thank you for being serious about feedback and good luck with development! :)