SMTP Relay vs Direct SMTP

Developers should learn and use SMTP relays when building applications that send transactional or marketing emails, as they provide better deliverability, scalability, and security compared to direct sending from application servers meets developers should use direct smtp when they need fine-grained control over email delivery, such as for high-volume transactional emails (e. Here's our take.

SMTP Relay

Nice Pick

Developers should learn and use SMTP relays when building applications that send transactional or marketing emails, as they provide better deliverability, scalability, and security compared to direct sending from application servers

Pros

• They are essential for handling high email volumes, implementing authentication protocols like SPF and DKIM, and integrating with email service providers in cloud-based or on-premises environments
• Related to: email-delivery, postfix

Cons

• Specific tradeoffs depend on your use case

Direct SMTP

Developers should use Direct SMTP when they need fine-grained control over email delivery, such as for high-volume transactional emails (e

Pros

• g
• Related to: smtp-protocol, email-delivery

Cons

• Specific tradeoffs depend on your use case

The Verdict

Use SMTP Relay if: You want they are essential for handling high email volumes, implementing authentication protocols like spf and dkim, and integrating with email service providers in cloud-based or on-premises environments and can live with specific tradeoffs depend on your use case.

Use Direct SMTP if: You prioritize g over what SMTP Relay offers.

The Bottom Line

SMTP Relay wins

Developers should learn and use SMTP relays when building applications that send transactional or marketing emails, as they provide better deliverability, scalability, and security compared to direct sending from application servers