Mail server subnet needed for SPF record

Good afternoon. May I have the subnet(s) of the email server platform that you are using? When I used the Diagnostic tool to send a test email to the administrator address, the emails were getting moved to the Spam folder because the source of the emails is different than my own mail server.

I reviewed the mail headers and determined the source to be at, so I added that to my SPF DNS record (v=spf1 mx a ip4: -all). Now, the emails are landing in my inbox. If there are any more IPs or subnets that may be used, I would like to add them to my SPF record.

Thank you.

Hello @bradbrownjr ,

We will have to ask for a second opinion on this. We will get back to you as soon as we have the complete information that you have requested.

Thank you for your patience!