Everyone raising question that ‘How to avoid your email going to span? Getting unwanted junk of mail flooding into inbox on daily basis. Yes, email filtering mandatory in exchange server including public service as Gmail, Outlook, Yahoo or any.

SPF, DKIM and DMARC playing big role to tag your email healthy and secure to receivers mail servers. Beside check email score to make necessary changes with domain DNS.

To check email rating with Mail-Tester.com or IsNotSpam.com, based on the result fix major issues and maintain score 8+ to avoid going spam. Also validate blacklist IP and domain on MxToolbox.com.

SPF – Sender Policy Framework

1. Select your domain
2. Navigate/click DNS management
3. Click ‘Add’ new record based on hosting provider console
4. In dropdown pick record type as TXT record
5. Create a new TXT records
   • Host: The domain or subdomain for the SPF record. Feed your root domain, enter @ as in Host field.
   • TXT Value: The SPF rule to be applied. For example, enter v=spf1 mx -all to indicate emails are allowed from your mail server and no others. Check out more rule on SPF record syntax.
   • TTL: Keep default setting as 1 hour
6. Save changes and allow minimum 24hr to reflect/publish them.

DKIM

1. log in to SendGrid‘ dashboard;
2. Navigate Settings/Sender Authentication -> Authenticate Your Domain, choose your DNS host and click the Next button.
3. Select appropriate DNS host system
4. Optional: “brand the links for this domain?” Subdomain can be added to authenticate.

5. Select below field under ‘Advanced settings’
   • Use automated security
   • Use a custom DKIM selector – domain short identity

6. Add generated CNAME into domain DNS section
7. Check record in DKIM checks

DMARC

Add SPF and DKIM record before DMARC, login to dmarcly.com to complete the process. Follow the process on create record