SOA Serial Number Format is Invalid

I have set up an Ubuntu box and everything seems to be working. Website shows, SSL is enabled and I thought everything was as it should but doing a check on mxtoolbox and i get the following warning:

SOA Serial Number Format is Invalid

The serial number is an unsigned 32 bit value assigned to your SOA record must be between 1 and 4294967295.

We will issue a warning if your serial is either invalid by being outside of the allowed range or if it does not conform to this format.

Is this something I have done or is this something related to the Digital Ocean NameServers?

Show comments

Submit an answer

This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

Sign In or Sign Up to Answer

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Want to learn more? Join the DigitalOcean Community!

Join our DigitalOcean community of over a million developers for free! Get help and share knowledge in Q&A, subscribe to topics of interest, and get courses and tools that will help you grow as a developer and scale your project or business.

This comment has been deleted

Hi Thanks your your help I get the following from the intodns report:

Your SOA serial number is: 1409411920. This can be ok if you know what you are doing.