SMTP services and SMTP relay services enable organizations to send emails, including bulk emails to customers and users from their website. SMTP service providers provide an SMTP server that can be hosted or used on-premise so websites can send emails and ensure high deliverability of emails and mass email campaigns. Mail transfer agent (MTA) services are part of SMTP services. Compare and read user reviews of the best SMTP services for Linux currently available using the table below. This list is updated regularly.
Postfix
DIENNEA SRL
Exim
Coder Technologies
Ziff Davis