Software Alternatives & Reviews

MxToolBox Reviews

All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool.

Social recommendations and mentions

We have tracked the following product recommendations or mentions on Reddit and HackerNews. They can help you see what people think about MxToolBox and what they use it for.
  • Domain transfer broke my email address (Google to Weebly) and I want to access my email while I wait a week for it to transfer back is pretty handy when it comes to troubleshooting mail servers. - Source: Reddit / 1 day ago
  • My domain is blacklisted by MS
    Try running your domain through and see what blacklists it pops up on. Then follow the instructions for each of those blacklists. - Source: Reddit / 8 days ago
  • Deliverability of emails to individual employees of large businesses, sent from custom domain
    Using SPF, DKIM, DMARC (currently None for deliverability testing), and DNSSEC are set up and confirmed with dig,, and EU's MECSA. At least one recipient's IT doesn't seem to send rua / ruf reports. - Source: Reddit / 11 days ago
  • Having issues with my mailserver (using asxigen)
    I have checked my MX, DKIM, SPF and DMARC entries using These checked out fine. However I get an error for smtp. I have an A record for mail that points to the internal IP of my mailserver (ex. - Source: Reddit / 19 days ago
  • How do you prevent your personal from going to everyone spam?
    You can also use as a resource to trouble shoot problems. - Source: Reddit / 20 days ago
  • Mandrill transactional messages not reaching destination
    I had checked if I was on a spam list here - Source: Reddit / 23 days ago
  • SPF record accidentally not changed after domain switch. People having my emails marked as spam that are using O365.
    You can check your MX and other records at MX Toolbox to see if there are any glaring issues, e.g. SPF, DNS, blacklist check. - Source: Reddit / 24 days ago
  • refusing to sell a domain they have in parking
    A good tool to see if a domain is set up with mx records (mail settings) is - Source: Reddit / 24 days ago
  • How does Exchange Online handle SPF softfails by default?
    Have you checked to make sure your spf records are correct? can check you spf records. - Source: Reddit / 28 days ago
  • Domain Blacklist
    We have a problem with emails sent from our domain being rejected because they are on the blacklist. I have checked our domain, the IP of our mail server at and and there is no indication that we are on the spam list. I called two IT departments, companies that have rejected our emails. They both use Forti as their firewall. Is there any way I can... - Source: Reddit / about 1 month ago
  • Message suspected as Spam
    Put the domain name into MXTOOLBOX, run the initial process and the click on the "Find Problems" button. - Source: Reddit / about 2 months ago
  • networking issue on hetzner
    Do you use for looking up black listing? I have tried to cycle through several different IP addresses in oregon and ashburn. Most of the newly assigned IP addresses in Oregon that I have cycled through, seem to be black listed based on - Source: Reddit / about 2 months ago
  • how do i do
    Depends if you have a static IP or not, if it’s static it’s fairly straight forward and all you need to create is an MX record pointing to your static IP. Once up and running you can add SPF and DKIM. I would use to check your progress and it will tell you what you are missing. - Source: Reddit / 2 months ago
  • CloudFront DNS issue...
    What happens if you look it up here? Https:// - Source: Reddit / 3 months ago
  • What should I look out for before implementing DKIM?
    Excellent response. I'd also add using to help check along with - Source: Reddit / 3 months ago
  • Help activating my Gmail..
    Also, go to and enter your domain. Be sure the records your expecting show up. Somewhere in the response it should show the name of your name server. Be sure that’s where you tried to update the records. - Source: Reddit / 3 months ago
  • Gmail suddenly can't find MX records?
    What do other servers see? Use web tools such as to check what your published DNS records say. If you have access to a linux box, you can also use the dig commandline tool to check these. - Source: Reddit / 3 months ago
  • Purpose of MX records for Google WorkSpace Gmail?
    MX records tell email servers where to deliver email (the domain on the OTHER side of the @ symbol, i.w. The part of [email protected]) - you can look them up with a simple MX record lookup ala - Source: Reddit / 3 months ago
  • Can't receive emails
    Also as one poster said, go to and check your mx records. - Source: Reddit / 4 months ago
  • Our domain's emails have started going to spam and receiving quarantine messages from outlook
    Check your mailserver on - Source: Reddit / 4 months ago
  • Custom Domain DNS failed
    Could be worth double checking with a third party tool like to see if it’s the DNS record or Fastmail not working. - Source: Reddit / 4 months ago

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