Sugar Version: Version 4.5.1g (Build 1003)
Sugar Edition: Sugar Open Source
Category: Email
Operating System: Windows XP
PHP Version: PHP 5.1.6
Database: (can't remember... Sorry..)
Web Server: Apache/2.0.50

Steps to reproduce
1. Went to Compose e-mail
2. Typed out e-mail, and such like that...
3. Send!

1. Have sending e-mail when task is assigned to someone on.
2. Assign a task to someone.

Error message or issue presented
No e-mail ever reaches where it's supposed to. I'm using the SMTP protocol of SugarCRM and the log file for Sugar gives no problems. To test to make sure it was logging, I entered an improper e-mail address and then it DID show:
Code:
02/13/08 21:19:33,168 [2572] FATAL SugarCRM - SugarPHPMailer encountered an error: You must provide at least one recipient email address.
02/13/08 21:19:33,169 [2572] FATAL SugarCRM - Error emailing:You must provide at least one recipient email address.
That seems to me that it IS logging the problems it comes across. I've also checked the log files for my SMTP client, and it's not even registering ANYTHING connect. To test this I've connected to the SMTP server and it all works properly. So I'm at a complete loss.

This is a problem that I've been having over multiple builds. I tried to use the search function to find anything, but wasn't able to. Thanks in advance for anyone who tries to help.