Testing SMTP settings

Came upon this link for testing SMTP server using telnet.
http://www.petri.co.il/test_smtp_service.htm.
Was very useful in verifying whether the settings are right before deploying our j2ee app on a remote server.
Also realized that the WebLogic domain needs a restart if settings in the JNDI Mail Session are changed.

Sahi vs Selenium vs Watir

Updated thorough comparison of Sahi vs. Selenium

THIS IS A VERY OLD COMPARISON AND IS NOT TRUE ANYMORE Click here for the latest: Updated thorough comparison of Sahi vs. Selenium

A brief comparison. Please let me know if any information is incorrect.
Added Watir related data from Chris McMohan's comments:

Feature	Watir	Selenium	Sahi
Browser based	yes	yes	yes
Browser type independent (IE, Firefox etc)	IE & FireFox	yes	yes
Scriptable/programmable (manageable/refactorable)	yes	not natively, but using ruby	yes (uses javascript)
Recorder	yes	Only on Firefox.	yes
Object spy	no	no	yes (hovering on any element,shows its accessor)
Simultaneuos playback of multiple scripts(reduces playback time)	yes	no	yes
Multiple domain support (go from google.com to thoughtworks.com)	yes	no	yes
Frames and popup support	yes	has problems	yes
Ant support (helps continuous integration)	yes	yes	yes
Multi language (non-ascii character)support	yes		yes
HTTPS support	yes(Protocol independent)		yes
Learning curve	Learn Ruby		Recorder reduces the need to write code.TextPad Clip Libraries can be used too.
Language of scripting	Ruby - not native to the browser	Ruby - not native to the browser	Javascript - native to the browser andhence easily extendable.
Web-app independent	yes	no - needs to be deployed with app	yes
OS Independent	no	yes	yes

Comments from Chris McMohan which I have incorporated into this comparison:
Actually, Watir has
a Firefox interface (version 1.0 just released, called "FireWatir")
a Recorder
methods intended for use at the command line like "show_links" so an object spy isn't necessary
Simultaneous playback (via Ruby threads)
Frames support (really excellent frames support)
Popup support native in version 1.5 (coming soon)
Ant support (not sure what you mean, but Ruby can be integrated with CruiseControl)
non-ascii character support (via Ruby)
Learning curve: Watir *is* a DSL for scripting the IE DOM. Ruby is just a bonus. :)

THIS IS A VERY OLD COMPARISON AND IS NOT TRUE ANYMORE

Sahi in London

"That was amazing!"
"That's the coolest thing I have seen!"
"If you haven't seen the demo, you should see it."
"Convincing customers to use this tool should be very very easy."

A few remarks from those who saw a demo of Sahi in the ThoughtWorks UK office.

I am grateful for the appreciation.

Just made another release of Sahi. Changes include automatic opening of Controller Window, and syntax highlighting files for TextPad.

Tech support emails have just started trickling in and it feels good to know someone else in this world is also finding this tool useful!