Several factors can influence the speed of email delivery:
Email Service Provider (ESP): The quality and efficiency of your ESP play a critical role in how quickly your emails are sent and delivered. Server Load: High server load can slow down the process, causing delays in email delivery. Email Content: Emails with large attachments or heavy multimedia can take longer to process and send. Recipient Server: The speed at which the recipient's email server processes the incoming email can also affect delivery time.