Email Deliverability: Best Practices for Transactional Emails

High deliverability rates are crucial for transactional emails. When users don't receive order confirmations or password resets, it impacts their experience and your business.

Domain Authentication

SPF Records

SPF (Sender Policy Framework) tells email providers which servers are authorized to send emails from your domain. Add a TXT record to your DNS:

v=spf1 include:onepush.app ~all

DKIM Signing

DKIM (DomainKeys Identified Mail) cryptographically signs your emails, proving they came from your domain. OnePush automatically signs all emails sent through our platform.

DMARC Policy

DMARC (Domain-based Message Authentication) tells email providers what to do with emails that fail SPF or DKIM checks. Start with a monitoring policy:

v=DMARC1; p=none; rua=mailto:dmarc@yourdomain.com

Reputation Management

Maintain Low Bounce Rates

Remove invalid email addresses from your database. High bounce rates damage your sender reputation.

Monitor Spam Complaints

If users mark your emails as spam, investigate why. Transactional emails should rarely receive spam complaints.

Consistent Sending Patterns

Avoid sudden spikes in email volume. Gradually increase sending volume to build reputation.

Content Best Practices

• Use clear, descriptive subject lines
• Include unsubscribe links (even for transactional emails)
• Avoid spam trigger words
• Keep HTML simple and clean
• Test emails across different clients

Monitoring and Analytics

Use OnePush's email logs to monitor:

• Delivery rates
• Open and click rates
• Bounce and spam complaint rates
• Blacklist status

Regular monitoring helps you catch and fix deliverability issues before they impact your users.