Yes, DKIM can affect email delivery speed to some extent. This is because the process of generating and verifying the DKIM signatures requires additional processing time and resources, which can cause slight delays in email delivery. However, the impact is usually minimal and is outweighed by the benefits of DKIM in improving email deliverability and reducing the risk of phishing and email spoofing. Additionally, many email servers are optimized to handle DKIM signatures efficiently, so the impact on delivery speed is less significant than it used to be.
