SMTP failing since install of WXP SP2

E

Ed

Since installing Windows XP Professional Service Pack 2, I
get the following error: Outlook Is Unable to Connect to
Your Outgoing (SMTP)

This is occuring on all e-mail accounts.
 
N

neo [mvp outlook]

Do you have any software installed that scans POP3/SMTP mail or is the
account configured to work thru a loopback address (localhost or 127.0.0.x)?
 
B

Brian Tillman

Ed said:
Since installing Windows XP Professional Service Pack 2, I
get the following error: Outlook Is Unable to Connect to
Your Outgoing (SMTP)
Click to expand...

Check to make sure you are properly authenticating to the outgoing server.
Add Outlook to the Windows firewall exception list.
 
E

Ed

neo said:
Do you have any software installed that scans POP3/SMTP mail
Click to expand...

Yes I have NAV but have tried with it scanning and not scanning it doesn't
seem to make any difference.
or is the account configured to work thru a loopback address (localhost or 127.0.0.x)?
Click to expand...

Not that I know of.

The only thing I did was install SP2 and ever since then I have not been
able to use outlook for any email. I have permitted port 25 traffic.
 
E

Ed

neo said:
Do you have any software installed that scans POP3/SMTP mail
Click to expand...

Yes I have NAV but have tried with it scanning and not scanning it doesn't
seem to make any difference.
or is the account configured to work thru a loopback address (localhost or 127.0.0.x)?
Click to expand...

Not that I know of.

The only thing I did was install SP2 and ever since then I have not been
able to use outlook for any email. I have permitted port 25 traffic.
 
E

Ed

neo said:
Do you have any software installed that scans POP3/SMTP mail
Click to expand...

Yes I have NAV but have tried with it scanning and not scanning it doesn't
seem to make any difference.
or is the account configured to work thru a loopback address (localhost or 127.0.0.x)?
Click to expand...

Not that I know of.

The only thing I did was install SP2 and ever since then I have not been
able to use outlook for any email. I have permitted port 25 traffic.
 
E

Ed

Brian Tillman said:
Check to make sure you are properly authenticating to the outgoing server.
Add Outlook to the Windows firewall exception list.
Click to expand...

I believe outlook is on the firewall exception list, however I get the
failures whether the firewall is enabled or not, even permitting port 25
traffice.

I also get the error whether I turn NAV scanning on or off.

Here are the steps:
1. Outlook works perfect.
2. Install SP2
3. Outlook SMTP fails on all mail accounts ever since then no matter what I
do.
 
N

neo [mvp outlook]

You shouldn't have to define any exceptions for Outlook. Do me a favor and
take a peek at your POP3/SMTP account properties. What is the server value
set to for POP3 and SMTP?
 
E

Ed.

Sorry for the repeats the board said the posts failed.

Anyway I finally found the problem... Around the same time I installed SP2
- optonline decided to block all residential outbound port 25 traffic without
telling any of their customers about it. Despite all my searches on the web
took me a while to narrow it down to that.

Ed.
 
J

Jeff Stephenson [MSFT]

Sadly, that's happening a lot. ISPs are flailing around trying to stop
spam, and this is one of the things that somebody thought was a good idea.
I haven't seen a reduction in spam, however - all it does is make the
Internet less useful...
 
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