Test your connection to Sendgrid, Amazon SES, or any other SMTP server.

Free advanced online tool to Test and check your SMTP server. SMTPer provides you a full interface to test and check your Mail server on the fly. Specify the SMTP host and the port, you can eventually use a Secured Connection (ssl, tsl ..) and authentication...

Our SMTP test tool is made to help you test the working and operation of your SMTP server. You can specify your particular server using the hostname or the IP address. After that, you can specify the sending and receiving email addresses and simulate a standard email transfer to see if the SMTP server is working properly or not.

This test will connect to a mail server via SMTP, perform a simple Open Relay Test and verify the server has a reverse DNS (PTR) record. It will also measure the response times for the mail server. If you don't know your mail server's address, start with a MX Lookup.

SMTP Tester makes it easy to verify your SMTP configuration for popular email services (like Gmail, Outlook, Yahoo, etc) or your custom SMTP server. No frills, just a simple way to make sure your SMTP configuration is correct. Verify anyone's …

2016年7月26日 · Various things can be tested with simply telneting into a given SMTP server: Is the server working? Is it a firewall that blocks communication? Does the mail server allow for relaying of a particular domain or an email address? What SMTP commands does the mail server support? How much time does it take for a server to response?

Test your SMTP server with our free SMTP test tool. Verify email sending, troubleshoot SMTP errors, and check SMTP authentication for Gmail, Yahoo, Outlook, and custom SMTP servers.