Email service provider (ESP)
A service organization that provides transactional and marketing email services.
Most Email Service Provider (ESP) include features that allow customers to:
- Upload and maintain subscriber lists
- Schedule and send marketing campaigns
- Manage transactional email
- Improve email deliverability
- Monitor statistics of your email campaigns
ESPs also provide expertise to increase your email deliverability and preserve your sending reputation. To accomplish these goals, ESPs use features and tools like the following:
An ESP might provide UI-based email services, SMTP service, or both. Twilio SendGrid provides both.