Marketers need to authenticate their email to prove to ISPs that their messages are legitimate, helping to ensure delivery to their subscribers. Sender Policy Framework (SPF) verifies a brand’s identity; DomainKeys Identified Mail (DKIM) verifies the message wasn’t tampered with in transmission; and Domain Based Authentication Reporting and Conformance (DMARC) requires both SPF and DKIM approval in order to authenticate.
InfusionSoft is a fully functional CRM and marketing solution created for small and medium size businesses. Comparing it to MailChimp or AWeber is like comparing a Lamborghini to a VW Golf. It provides highly advanced features for list segmentation, lead scoring and marketing automation. On top of all that, you can integrate all of these features with your optin form using Infusionsoft Tags + OptinMonster.