Outlook 2010 Send/Receive works without Send Errors ... but email doesn't get sent!

Between Friday, when all was working fine, and today, my Outlook 2010 started acting up!

I receive mail w/o problems but cannot send. I changed Outlook to Show Progress. No errors, but it does the send part very quickly. Using Outlook as an IMAP mail client (we use DreamHost).

I now have 4 emails in my Outbox. I rebooted and did a manual send/receive. No errors on the errors tab ... but the emails are still there!

Any ideas as to cause? I am so used to seeing an error message in the Progress dialog whenever I have a problem that i have no idea what to do when there are nor errors and Outlook isn't working properly!

Thanks very much,

John
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243johnmAsked:
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JohnBusiness Consultant (Owner)Commented:
You could have had something to wrong with Outlook, but if you are certain nothing has changed, consider that your host may have changed security settings.

Check Outlook Account Settings, Advanced and see if POP is / should be set for 995/SSH and SMTP is / should be set for 465 or 587 / TLS or SSH (lots of combinations so get the correct one).

Also look in Outlook Account Settings, Outgoing Server and make sure Authentication is set if it needs to be.

These are the two areas an ISP may change to improve security and not changing with them will prevent sending.
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243johnmAuthor Commented:
Thanks, I'll check that John.

I just lit up another computer I use and was able to send an email without problems. So the problem isn't at DreamHost!

John
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JohnBusiness Consultant (Owner)Commented:
If the other computer is working fine, consider a few things:

1. You might wish to try an Office Repair on the affected computer, You do this from Control Panel, Programs and Features, click on Office and then Change and then select Repair. Repair, restart and then update Office completely. Try this.

2. Set up a new, test, Windows User Account (Profile) and log into the new Profile. Test Outlook from there (set up an account). You may possibly have a damaged profile.
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243johnmAuthor Commented:
Totally strange. I have fixed it ... but I had to create a new PST file in order to be able to send emails!

Trying to figure this out. The only non-standard thing I did was to use DreamHost's webmail yesterday. When I opened up Outlook today, it downloaded all my IMAP folders again...

Any ideas what happened? More important, is there any way to connect up to my old local PST file? Or do I have to put a different name on it in order to have access to it again?

Thanks much,

John
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JohnBusiness Consultant (Owner)Commented:
What you have done, I think, is created a new Outlook Account (which makes a new PST file). That would be another step in the progression to test.  I don't know why webmail would have made a difference but it is related in someway to the settings I started with.

there any way to connect up to my old local PST file?  <-- If it is still there along with the new one (and I expect it is) you can import the file into your new file.

Open Outlook as it is now, and go File, Open, Import, from an existing file, use the PST option next and point it to the old PST file. Look at the options. The defaults are normally fine but just look.

I do this about once a quarter when I am away for a extended period. I keep mail in my Inbox on my laptop, copy the PST file to Backup.PST on my desktop, open Outlook and import just the Inbox. Works great.
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JohnBusiness Consultant (Owner)Commented:
@243johnm  - Thank you and I was happy to help.
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