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If you're adding SMTP2GO as a sending source, you'll want to make sure SPF and DKIM are setup correctly. This ensures your messages pass authentication checks and land in user's inbox instead of spam.
  1. Add Your Domain to SMTP2GO

Before you can publish any DNS records, SMTP2GO needs to know which domain you're sending from. This step ensures the platform can generate the proper records tied specifically to your domain.

  1. Log into your SMTP2GO dashboard.
  2. Go to Sending > Verified Senders > Sender Domains.
  3. Click Add sender domain and enter your base domain.

  1. SMTP2GO will generate three DNS CNAME records, leave the page open for now.
  2. Add DNS Records
 
  1. ADD DNS Records

SMTP2GO will provide three CNAME records that you'll need to add to your DNS in order to complete the domain authentication process. These record are used to align SPF through a return-path domain, and publish your DKIM public key.

 

  1. Validate DNS in SMTP2GO

Once you've added the records, go back to the SMTP2GO dashboard and click Validate next to your domain. When DNS is set up correctly, the domain status will change to Verified.

 

About SPF with SMTP2GO
SMTP2GO takes a different approach to SPF. You do not need to add an include to your SPF record. Instead, SMTP2GO aligns SPF through the custom return-path CNAME record. This helps keep your SPF record clean and reduces the risk of hitting the 10-lookup limit for your SPF record.

Keywords: SMTP2GO SPF DKIM setup, SPF alignment, DNS Configuration, Domain validation

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