Help ensure your emails
hit the inbox
Stop guessing why your messages end up in spam. Follow this 26-point checklist to achieve technical compliance, enhanced sender reputation, and delivery success.
Strategy
Safe Sender
TL;DR
- Consistent sender identity helps recipients and providers trust your messages.
- Keep sender domain and address stable and encourage safe-sender whitelisting.
Organizations should maintain a consistent and recognizable sender identity for all outbound email communications. Messages should be sent from the same domain and address that recipients originally subscribed to and expect to hear from. Frequent changes to sender domains or addresses can confuse recipients, reduce trust, and negatively impact deliverability.
Consistent sender identities support stronger reputation signals and help mailbox providers and recipients quickly distinguish legitimate messages from phishing or unsolicited mail. Stability in sender information also improves alignment with SPF, DKIM, and DMARC authentication frameworks.
Recipients should be encouraged to add authorized sending addresses to their address books or “safe sender” lists. While automated filtering remains primary, user-level whitelisting can help prevent legitimate messages from being misclassified as spam and improve inbox placement.
Best practice is to promote safe sender actions during signup and in welcome emails, supported by simple instructions for major email platforms. Any necessary changes to sender identity should be communicated clearly in advance.
By maintaining stable sender identities and encouraging safe sender practices, organizations strengthen trust, improve delivery reliability, and support long-term engagement.
Consistent sender identities support stronger reputation signals and help mailbox providers and recipients quickly distinguish legitimate messages from phishing or unsolicited mail. Stability in sender information also improves alignment with SPF, DKIM, and DMARC authentication frameworks.
Recipients should be encouraged to add authorized sending addresses to their address books or “safe sender” lists. While automated filtering remains primary, user-level whitelisting can help prevent legitimate messages from being misclassified as spam and improve inbox placement.
Best practice is to promote safe sender actions during signup and in welcome emails, supported by simple instructions for major email platforms. Any necessary changes to sender identity should be communicated clearly in advance.
By maintaining stable sender identities and encouraging safe sender practices, organizations strengthen trust, improve delivery reliability, and support long-term engagement.