SendGrid's STMP server
SendGrid is among the best SMTP servers. It provides an SMTP service for reliable delivery and scalability.
SendGrid pros
Reputation and delivery monitoring: Get lithuania telephone number data insights into your sender reputation, delivery rates, and engagement analytics.
Real-time email analytics: Access real-time performance data in your personal dashboard or via API.
Documentation: The setup process is made easier with comprehensive documentation, open source libraries, and a clear setup flow.
Segmentation: Segment email and SMS audiences alike.
SendGrid cons
After-sale support: Users report that the SendGrid support team isn’t very helpful when you sign up.
Pricing: Since being acquired by Twilio, SendGrid got more expensive.
SendGrid pricing
SendGrid’s SMTP service is free for up to 100 emails/day. Along with SMTP relay, APIs and webhooks are also available on the free plan. To access more email credits, you can upgrade to a paid plan starting at $19.95/month for up to 50,000 monthly emails.
Discover the 5 best SendGrid alternatives for transactional email.
4. Mailgun
Mailgun SMTP server provider
Mailgun is a popular SMTP service, offering a set of powerful APIs for sending, receiving, and tracking emails. Known as a transactional email service “built for developers, by developers,” Mailgun has comprehensive API documentation and an easy SMTP integration.
Mailgun pros
Reliability: Mailgun is one of the most reliable services on the list.
Dedicated mail server: Send both marketing campaigns and transactional emails alike.
Real-time reporting: Access hourly data on your email performance.
Enterprise-focused solutions: Create a custom enterprise-grade solution for sending emails at scale.
Mailgun cons
Mailgun is built for developers. It’s not designed for non-tech teams. It’s a tech cloud-based SMTP service by Mailjet’s parent company Sinch.
On cheaper plans, the log retention period is only five days, and the minimum message retention period is one day.
Mailgun pricing
Mailgun doesn’t offer a forever-free plan. A free trial lasts for 30 days and includes 5,000 free emails. Email APIs, SMTP Relay, and webhooks can be accessed during a free trial and are included in every paid plan. Mailgun’s pricing plans at $35/month.
Discover the 7 best Mailgun Alternatives for transactional emails.
5. Postmark
SMTP service by Postmark
Postmark is ActiveCampaign’s SMTP service built for developers and product teams. The platform offers a simple but quality SMTP relay service for sending transactional email.
Postmark pros
Deliverability: Postmark has a narrow focus on deliverability, which means your transactional emails will most likely always be reaching recipients’ inboxes.
