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This article will detail using telnet and OpenSSL to test your email server. These tests should preferably run from the same server that is hosting your Sugar eDMS instance, though connecting from a different server may still be useful in diagnosing the issue. Telnet and OpenSSL should be available for use on your Linux server. If your Sugar instance is hosted on a Windows server, you may need to refer to an external article for instructions to install OpenSSL such as Building a Web Server for Windows, which is written for email servers that use SMTP with TLS/SSL.
Steps to Complete
Refer to the appropriate section below to test your email server.
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