Is your domain ready to send?
One check covers the five DNS records mailbox providers look at before they trust your email. You get a plain answer for each and the exact record to add when something is missing.
Five records, one job:
prove the mail is yours.
MX: where replies go
MX records name the servers that receive mail for your domain. Without them, replies and bounce messages have nowhere to go, and some receivers distrust a sending domain that can't receive.
SPF and DKIM: who may send, and a signature
SPF lists the servers allowed to send as your domain. DKIM signs every message so receivers can tell it came from you and wasn't changed on the way. Gmail and Yahoo require both from bulk senders.
DMARC: what happens to fakes
DMARC tells receivers what to do with mail that fails SPF and DKIM: deliver it, send it to spam or reject it. It also sends you reports on who is using your domain.
BIMI: your logo in the inbox
Optional. Once DMARC is enforced, BIMI lets Gmail, Yahoo and Apple Mail show your logo next to your emails.