Outlook 2003 won't send out replies or forwards

I have Outlook 2003 on my work computer and two home computers. Usually, when I reply to an email or try to forward an email, it just sits in the outbox. I try manual send/receive and it won't go. Sometimes, if I shut down Outlook and restart it, it'll send them but, about half of the time, it never sends them, I have to copy/paste everything into a "new" email, then it will send it. Any ideas???

Can you reinstall outlook?

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I can but it's doing the same thing on all three of my computers, two at home and one at work.

Can you get technical support from work? If it is 3 different computers having trouble with the same email account then it could be the email server which is something you don't have any control over. What is the email account? a work email account, yahoo, gmail, msn/hotmail? If the email account is a work account provided by wherever you work at then you should alert the tech people there that you have a problem with your account. With 3 different computers thats all that I can think of.

If it is yahoo or msn/hotmail account then I think that you have to pay them for a special account to allow you to use outlook to check your mail however that would mean that it wouldn't work (if you didn't pay for it) & not just work half of the time. Does this make any sense?

__________________
For best results please:
1) State your OS(s), any software involed in your problem, & any major updates (i.e. service pack, version, edition, service release, roll up, beta release, distribution [Linux], etc.) to your OS/software as applicable to your problem.
2) For hardware issues also provide your system information: RAM, processor, etc. in addition to your OS.
3) If you have more than one OS on your computer, how does your problem relate to your other OS(s)? This is especially important for hardware issues.
4) Provide as much detail as possible, being specific as even the most minute detail could help others help you solve the problem. Please tell us what you have tried.
5) Respond with the result(s) of the suggestion(s) from the other users to provide feedback, even if this only means saying "this worked!"