Frequently Asked Questions
How do DKIM, SPF, and DMARC affect SMTP email deliverability?
DKIM, SPF, and DMARC help receiving mail providers verify that a message is authorized and trustworthy. Without proper authentication, SMTP marketing emails are more likely to be treated as suspicious or blocked. Mail Designer 365 supports authenticated sending options so your campaigns can meet modern provider requirements.
The Mail Designer 365 blog covers this in its guide to the disadvantages of SMTP sending.
The Mail Designer 365 blog covers this in its guide to the disadvantages of SMTP sending.