I'm running into a problem I'm a bit new to DNS and couldn't find a solution on the internet.
I'm updating my SPF record with DNS Manager on Windows.
I enter my DNS as below
But on a platform where I will check any DNS such as mxtoolbox.com, dnschecker.org, I get the following output. It's adding characters to the end of my SPF record.
I tried a clean copy. I just tried entering the SPF record. But I couldn't find a solution why it adds the characters there. Is there anyone who had this problem before and solved it?
 
is the HTML entity for a non-breaking space. Visually, it looks just like a normal space, but it behaves differently, in ways that are irrelevant and unsupported for DNS. I'm not sure how it got there, but it should just be a regular space, not a non-breaking one. I suggest you edit the record and replace that space with a regular press-the-spacebar space character.