Microsoft Outlook will receive emails but not send emails.

roborobs computer repair

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I have a customer who has a .co.uk website with email. For the past three years he has had multiple emails setup in his Microsoft outlook software off this website and up until November they had all worked fine. All of a sudden none of the emails would send but would all would receive email.

Upon checking all settings were correct, I ran a registry scan and all was good, ran multiple virus scans all well. I even reinstalled Microsoft Office 2007. Even after manually re-entering the settings no emails would send. Any suggestions are welcome.
 
Have you tried a different outgoing server? I had a client whose email host (same as their website host) would do the same thing, receive but not send. Switched their outgoing server to the ISP's and all went well. In this case their email host was a small company and had multiple issues, this was one of them.

It sounds like you may have already checked all the settings, but to be sure, does their outgoing server require authentication? It would be rare, but if the host has switched from non-authentication to requiring it, that would cause the same probs.

Has he paid his bill? Is his site up and running?
 
Whats the error that outlook gives. The IP of the site could be spam blocked. Check this at www.mxtoolbox.com , and check the customers IP isnt blacklisted anywhere. I have found this with many clients trying to send bulk emails.
 
Isolate the PC local internet as the problem by setting up outlook on a different system possibly with a different internet provider (same ISP different location will work) and see if the issue is local to the system itself or if its a provider issue.

Its the worst when you go hard at a PC and find its the service provider(s) with the issue.
 
Have you tried a different outgoing server? I had a client whose email host (same as their website host) would do the same thing, receive but not send. Switched their outgoing server to the ISP's and all went well. In this case their email host was a small company and had multiple issues, this was one of them.

It sounds like you may have already checked all the settings, but to be sure, does their outgoing server require authentication? It would be rare, but if the host has switched from non-authentication to requiring it, that would cause the same probs.

Has he paid his bill? Is his site up and running?

His site is up and running and he can access his emails from his Ipad just not through outlook. He can also access them via web access on the PC.

Whats the error that outlook gives. The IP of the site could be spam blocked. Check this at www.mxtoolbox.com , and check the customers IP isnt blacklisted anywhere. I have found this with many clients trying to send bulk emails.

See above

Isolate the PC local internet as the problem by setting up outlook on a different system possibly with a different internet provider (same ISP different location will work) and see if the issue is local to the system itself or if its a provider issue.

Its the worst when you go hard at a PC and find its the service provider(s) with the issue.

See above.
 
Create a fresh PST......rename/save the old one. I bet an e-mail got corrupted 1/2 way out of the Outbox....and is "clogging the pipes".

Also, depending on which antivirus software this person is using, some AV software will "proxy" around SMTP and POP...so something could be jammed up in that pipe too, causing a backup in Outlook.
 
His site is up and running and he can access his emails from his Ipad just not through outlook. He can also access them via web access on the PC.

I'm assuming that when you say he can access his email that you also mean he can send email from his ipad and the web mail service. If you have verified all the settings on the ipad are identical to the pc, then I agree with YeOldeStoneCat. New PST, test, if all is good you can then import emails and files from the old pst.
 
One other thing to check is the port for the SMTP server port. If it's 25, they may have to change it to 587.

A large local ISP did a rolling change last year and didn't tell anybody the change was coming! For about a month, I got phone calls from customers who said they could receive emails, but suddenly could no longer send. Changing the SMTP port to 587 from 25 fixed the problem.
 
You could tyr sending an email from his Pc using good ol' telnet and then reviewing the headers when its recieved to check for relay flagged errors.
In the uk BT and other ISP antispam rules are fussy about handling mail when the domain SPF record is misconfigured. So if you try to post on behalf of another site ie you are logged in as joe.bloggs@BTinternet.com and try to send post as joe.bloggs@yourbiz.com via your BT account, the domains don't match acording to SPF rules and may be rejected.
 
One of my clients had a similar issue. I went through all the usual stuff, followed my notes I made when I installed everything for the client. Spren hours on it.

I eventually called the ISP (Virgin Media) who informed me that there were issues with the domain extension that was attached to the mail. I had to change the account settings to a different domain. Eg:

Original username setting:
Myclient@ntlworld.com (the one he was using)

To
Myclient@virginmedia.com

Mail address stayed the same, but it now works perfectly.
 
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