Need to test a SMTP server ?

During my work with Exchange, antispam solutions and relaying email I need a tool for sending e-mail directly to a server. I can use telnet for this purpose but many servers require strict RFC-compliance which is hard to do by typing manually.

I have found a good software to test SMTP servers from White Peak Software ($11.95) that fills my usage. With SMTP diagnostics you can:

• Author the test email
• SSL support
• Specify to/from addresses
• Specify SMTP server
• Add attachments (for checking attachment compliance)
• Authentication support
• Batch and schedule support

Links

• SMTP diagnostics information
• Using telnet to test SMTP
• RFC repository