How to configure and test SMTP, POP3, and IMAP inboxes using MailSlurp email APIs. Port 25, 465, 1143 and more.
Why this matters
Use this article to solve the immediate task, then apply the same approach in MailSlurp to build reliable, testable messaging workflows in production.
The following ports and hosts are available for MailSlurp SMTP inboxes.
| Protocol | Encryption | Port | Host |
|---|---|---|---|
| SMTP | None | 25 | mx.mailslurp.com |
| SMTP | None | 2525 | mx.mailslurp.com |
| IMAP | None | 1143 | mailslurp.click |
| SMTP | TLS | 587 | mailslurp.mx |
| SMTP | TLS | 2587 | mailslurp.mx |
| SMTP | TLS | 465 | mailslurp.mx |
| SMTP | TLS | 2465 | mailslurp.mx |
Next action
Move from reading to implementation with docs, examples, and a free workspace.
Post topics
Share this article
Continue reading
Previous
Create auto expiring inboxes using MailSlurp disposable mailboxes. Email accounts that expire and self destruct.
Next
Use MailSlurp's Playground to test ideas or integrations with a real user sign-up, verification, and login process.
Continue with adjacent resources that help you move from concept to implementation.
Find endpoint-level references and SDK setup guides.
See how MailSlurp covers messaging, testing, monitoring, and automation workflows.
Clone ready-to-run repositories in multiple languages.
Watch practical walkthroughs and implementation demos.
