Experts and documentation agree that including a recipient's name in the 'To' field of an email has minimal direct impact on deliverability. It's considered a personalization tactic that *may* improve engagement. Deliverability is primarily influenced by factors like sender reputation, proper authentication (SPF, DKIM, DMARC), maintaining a clean email list, avoiding spam triggers, and providing valuable content. While personalization can improve engagement, authentication, and list hygiene are more important for reaching the inbox.
8 marketer opinions
Multiple email marketing experts agree that including a recipient's name in the 'To' field of an email primarily serves as a personalization tactic and has a minimal direct impact on email deliverability. Deliverability is more influenced by factors such as sender reputation, proper email authentication (SPF, DKIM, DMARC), maintaining a clean email list, avoiding spam triggers, and ensuring high engagement rates through relevant content and subject lines.
Marketer view
Email marketer from Reddit shares that while personalization is good, it's more about the content and subject line. Deliverability is more dependent on whether your IP/domain is blacklisted, you're properly authenticated, and people aren't marking you as spam.
2 Dec 2021 - Reddit
Marketer view
Email marketer from Litmus explains that personalization beyond the name in the 'To' field can improve engagement. However, engagement indirectly helps with deliverability, but factors like authentication protocols, list hygiene, and sender reputation are more critical.
10 Jan 2025 - Litmus Blog
3 expert opinions
Email deliverability experts suggest that including a recipient's name in the 'To' field of an email has little to no direct impact on deliverability. It's primarily viewed as a marketing decision. Deliverability hinges more on factors like proper sender authentication, good list hygiene, and sending engaging content. A/B testing may reveal specific audience impact.
Expert view
Expert from Email Geeks shares his opinion that adding recipient names will probably not affect delivery decisions directly (rather than via possible engagement changes), at any relevant recipients ISP.
5 Jan 2023 - Email Geeks
Expert view
Expert from Email Geeks explains that including the full name in the To: header likely won't significantly benefit deliverability but is unlikely to hurt it either. He suggests that A/B testing could be done to determine if there is an impact on your audience.
11 Jun 2025 - Email Geeks
4 technical articles
Email deliverability documentation from RFC Editor, Google, Microsoft, and SparkPost indicates that including a recipient's name in the 'To' field does not significantly improve deliverability. The primary purpose of the 'To' field is for routing, and deliverability is mainly influenced by authentication (SPF, DKIM, DMARC), sender reputation, list hygiene, avoiding spam complaints, and content quality.
Technical article
Documentation from Microsoft shares that authentication, sender reputation, list hygiene, and content quality are critical for deliverability to Outlook.com. Personalization is mentioned as a way to increase engagement, but not as a direct factor in reaching the inbox.
11 Sep 2021 - Microsoft
Technical article
Documentation from SparkPost explains that Authentication records such as SPF and DKIM help to reduce spam and improve deliverability rates
17 Oct 2022 - SparkPost
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