It says similar for SPF record (I can only embed one image in a post)
Please, can anyone help me? We are able to send emails, but we can’t receive any. I tried adding the records, like it says on my Netlify domains DNS settings, using TXT records.
There’s a great Support Guide that cover migrating to Netlify DNS including configuring MX records
In short, you need to add all MX and other records (DKIM, SPF, etc.) to Netlify DNS. Ideally (as mentioned in the guide above) you would have done this prior to swtich nameservers to ensure minimal downtime.