While domain name choice alone might not directly trigger spam filters, a combination of factors, including the perceived intent and association with spam-related activities or brand impersonation, can significantly impact sender reputation and deliverability. Key to success is using clear, legitimate-looking domain names, avoiding misleading terminology or impersonations, and ensuring proper authentication (SPF, DKIM, DMARC) to build trust and avoid raising red flags. Domain reputation is a key indicator for spam filters, so careful selection is crucial.

While domain name choice alone may not directly trigger spam filters, it significantly impacts sender reputation, indirectly influencing deliverability. Avoid deceptive or misleading names, especially those resembling phishing attempts or containing spam keywords. Proper authentication is essential, but a carefully chosen, legitimate-looking domain name builds trust and avoids raising red flags.

While using words like 'alerts' is generally acceptable if the domain is properly authenticated, it's crucial to avoid names resembling phishing attempts (e.g., paypa1.com) or those using excessive hyphens or numbers. The domain name's perceived intent and overall impression significantly impacts sender reputation and deliverability, even with authentication in place.

Using misleading, spammy, confusing, or ambiguous domain names negatively impacts sender reputation and deliverability, according to Google, RFC Editor, Microsoft, and DMARC. Mimicking well-known brands in domain names can also trigger phishing flags. Clear, unambiguous, and non-misleading naming conventions are crucial for reliable email delivery and brand protection.