The consensus is that switching to a dedicated IP address doesn't automatically guarantee improved email deliverability. While it offers more control over sender reputation and isolates you from the negative impact of other senders on a shared IP, the actual improvement depends heavily on your sending practices and ability to maintain a positive reputation. If your current shared IP isn't experiencing blocks and your sending practices are poor, a dedicated IP may not help, and could even worsen deliverability. High-volume senders with good sending habits stand to gain the most. Careful IP warming, correct DNS settings, and ongoing monitoring are crucial for success. Risk mitigation, such as using both shared and dedicated IPs, should also be considered.

The potential deliverability improvement from using a dedicated IP versus a shared IP is complex and depends heavily on the sender's practices. While a dedicated IP provides greater control over sender reputation and isolates you from the negative impacts of other senders' poor practices, it also places the full responsibility for maintaining a good reputation on you. If you have poor sending practices, a dedicated IP can actually harm your deliverability. Several experts recommend using Google Postmaster Tools to assess your shared IP's reputation before switching. Successfully migrating to a dedicated IP requires careful planning, including IP warming and correct DNS settings. Consistent, high-volume senders who maintain good email marketing practices are most likely to benefit from dedicated IPs, but even then, improved deliverability is not guaranteed and requires active management.

Experts agree that moving to a dedicated IP for email sending doesn't automatically guarantee improved deliverability. If you aren't experiencing blocks related to your shared IP, switching to a dedicated IP won't make a difference. The potential improvement is highly dependent on the sender's practices and their ability to maintain a positive reputation. While a dedicated IP provides control over your reputation, you also bear sole responsibility. A risk mitigation strategy that considers potential revenue loss from blocking is also a factor.

Documentation from Google and Microsoft suggests that dedicated IPs can improve deliverability, particularly for high-volume senders who maintain a clean sending reputation, by allowing them to build their own reputation independently. However, RFC Editor highlights that dedicated IPs can trigger different sender policies or filters. SparkPost stresses the importance of careful IP warming and correct DNS settings to avoid harming deliverability during the migration.