Several factors can influence email delivery, including:
Sender Reputation: Email service providers (ESPs) assess the sender's reputation based on past email behaviors. A poor reputation can lead to emails being marked as spam. Content Quality: Emails containing spammy content, excessive links, or suspicious attachments are more likely to be filtered out. Recipient Engagement: High engagement rates (opens, clicks, replies) indicate that recipients find the emails valuable, improving deliverability. Technical Configurations: Proper setup of SPF, DKIM, and DMARC records can help authenticate emails and improve delivery rates.