Mailster

Free tool

SPF, DKIM & DMARC checker

Enter a domain and we will look up its SPF, DMARC, DKIM and MX records — the four settings that decide whether your email reaches the inbox or the spam folder.

outlook.com

Some settings need attention.

SPF

Pass

SPF record looks good

A valid SPF record is published for outlook.com and it ends with a strict all mechanism.

Records found

  • v=spf1 include:spf2.outlook.com -all

DKIM

Pass

DKIM key found

Found 2 valid DKIM key(s) for outlook.com.

Selectors found: selector1, selector2

Records found

  • v=DKIM1;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvWyktrIL8DO/+UGvMbv7cPd/Xogpbs7pgVw8y9ldO6AAMmg8+ijENl/c7Fb1MfKM7uG3LMwAr0dVVKyM+mbkoX2k5L7lsROQr0Z9gGSpu7xrnZOa58+/pIhd2Xk/DFPpa5+TKbWodbsSZPRN8z0RY5x59jdzSclXlEyN9mEZdmOiKTsOP6A7vQxfSya9jg5N81dfNNvP7HnWejMMsKyIMrXptxOhIBuEYH67JDe98QgX14oHvGM2Uz53if/SW8MF09rYh9sp4ZsaWLIg6T343JzlbtrsGRGCDJ9JPpxRWZimtz+Up/BlKzT6sCCrBihb/Bi3pZiEBB4Ui/vruL5RCQIDAQAB;n=2048,1452627113,1468351913
  • v=DKIM1;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv4FtIHuwq9952OTOwVZEofzUo9nZJZV7Hn3zOXBHaEOP71nMs+uCheSeYRH34PLvo9MngvAFxXG4X8dpL35onCZq2uivZrSBid1ZPDiDqTsK8y26vCV/RpVSWeJEO0SWejooFY7RJ1sbSIxj3Yj4n95oysVoNk3OIJcLryIgjPwzoxFyFQKfpfzAuBf0xvAs29JW9whxe1A7J9Z+wJVhVs37o2ua+sMb7ypEhVjoGHJnGpHh3qq8ukHMw6XAiSD1bG5jndbWNXEf93E1UAAmIYZvxGqwFU0cpCu9YwmwEXYQtAXORinEYAIQKpIlCtH0hW6XKnsbxnbmUmRs/a1bJQIDAQAB;n=2048,1452627114,1468351914

DMARC

Warning

DMARC policy is p=none

p=none only monitors and takes no action. That is a fine starting point — move to p=quarantine once you have reviewed the reports.

Records found

  • v=DMARC1; p=none; sp=quarantine; pct=100; rua=mailto:rua@dmarc.microsoft; ruf=mailto:ruf@dmarc.microsoft; fo=1

MX records

Pass

MX records found

1 mail server(s) are configured for outlook.com.

Records found

  • 5 outlook-com.olc.protection.outlook.com.

What do these records mean?

SPF, DKIM and DMARC prove your email really comes from your domain. Mailbox providers check them to decide whether to trust you. Fix the warnings above, then wait a few hours for DNS to update and run the check again.

Hosting mail on Zoho Mail? Keep an eye on the MX and DKIM checks above — both must be configured at your domain registrar for mail to flow and to stay out of spam.