SMTP Client for testing a potentially broken mail server

Question

I need a simple Windows SMTP client for testing direct delivery of mail to a server, to debug some e-mail problems I am having. I have tried several applications, and found none to be very useful:

• SimpleCOMTools SMTP Test Tool (Doesn't send a proper FROM address)
• Simple SMTP Client (Requires SMTP auth... I just need direct delivery)
• SMTP Test (Doesn't allow specification of a FROM address at all, causing my mail server to reject the message)

Any others, before I resort to typing in SMTP commands by hand?

Answer 1

I have never seen a really good one that lets you see all the information you need. Personally, I need to do this all the time, and you since you will need to enter the specifics anyway, I recommend that you just create a document with the commands in it (copy the stuff below), and save it somewhere for future use. Then when you are ready to test, you open the document, edit in your specifics, and then cut and paste them.

In case you need the commands, here they are:

telnet (host) 25
ehlo (your domain)
mail from:<(originating e-mail address)>
rcpt to:<(recipient e-mail address)>
data (then enter data)
Sample data
. (single period to end e-mail, and send it)