Introductions

Email deliverability is the most critical metric for Salesforce email success—regardless of how many emails you send or how compelling your content is, none of it matters if messages don't reach their intended recipients. In Salesforce, deliverability depends on multiple interconnected factors, including sender authentication, email infrastructure, content quality, and recipient engagement.

Authentication Requirements:

Proper email authentication forms the foundation of deliverability. Salesforce requires implementing SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Message) records to verify your domain's legitimacy. Without these authentication protocols, email providers like Gmail, Outlook, and Yahoo are increasingly likely to reject or flag your messages as suspicious. DMARC (Domain-based Message Authentication, Reporting, and Conformance) adds another layer of protection and reporting.

Sender Reputation Impact:

Your sending domain builds a reputation score with email providers based on historical performance. High bounce rates, spam complaints, and poor engagement damage this reputation, while consistent delivery to engaged recipients improves it. Organizations like HFM Advisors maintain excellent deliverability through careful list hygiene and relevant content targeting.

Salesforce-Specific Considerations:

Salesforce's infrastructure and 5,000 daily email limit can actually impact deliverability. When organizations hit the limit, and delay sends, time-sensitive communications lose relevance. Additionally, using Salesforce's shared sending infrastructure means your deliverability can be affected by other users' practices, though dedicated IP addresses are available for high-volume senders.

Content Quality Factors:

Email providers analyze content for spam indicators: excessive capitalization, misleading subject lines, suspicious links, poor HTML coding, and imbalanced text-to-image ratios. Using professional email templates and following email best practices helps maintain deliverability. Always include clear unsubscribe mechanisms and honor opt-out requests immediately.

List Management Best Practices:

Clean, permission-based email lists are essential. Remove hard bounces immediately, suppress chronic non-openers after 6-12 months, and segment active vs. inactive contacts. UMass Boston maintains high deliverability across 15,000 student contacts through rigorous list hygiene and relevant segmentation.

Monitoring and Optimization:

Track key deliverability metrics: delivery rate (percentage delivered), bounce rate (under 2% ideal), spam complaint rate (under 0.1%), and engagement rates. Salesforce's email tracking provides basic metrics, though comprehensive email analytics require enhanced solutions. For a complete framework on monitoring and improving your Salesforce email deliverability, see our comprehensive email deliverability guide.

External ESP vs. Native Solutions:

While external platforms like Marketing Cloud or Pardot offer dedicated deliverability infrastructure, they introduce data synchronization challenges. Native Salesforce solutions like MassMailer provide enterprise-grade deliverability while maintaining complete data integrity within your org.

For comprehensive strategies, see our Salesforce Mass Email Guide.

Key Takeaways

  • Authentication is Non-Negotiable: SPF, DKIM, and DMARC records are essential for inbox placement in modern email environments.

  • Reputation Builds Over Time: Sender reputation is earned through consistent good practices and damaged by spam complaints and bounces.

  • Content Quality Matters: Avoid spam triggers, maintain professional formatting, and provide genuine value to recipients

  • List Hygiene is Critical: Regular list cleaning, bounce management, and engagement-based segmentation protect deliverability.

  • Monitor Key Metrics: Track delivery rates, bounces, spam complaints, and engagement to identify issues early.

  • Native Solutions Preserve Control: Keeping email operations within Salesforce maintains deliverability control without external dependence.

Maximize your Salesforce email deliverability with MassMailer's enterprise-grade infrastructure. Proper authentication, dedicated sending reputation, and unlimited volume without compromising inbox placement. Improve your deliverability →