Outlook 2007 500 unrecognized command Error

[bfleming]

I can receive email just fine, but when I try to send I get a 500
unrecognized command Error.

Your message did not reach some or all of the intended recipients.

Subject: Test
Sent: 7/27/2009 10:26 AM

The following recipient(s) cannot be reached:

'J S' on 7/27/2009 10:27 AM
500 unrecognized command


Any ideas? My ISP said it was not on their end but I get the feeling it is.

 

[Brian Tillman [MVP - Outlook]]

I can receive email just fine, but when I try to send I get a 500
unrecognized command Error.

Your message did not reach some or all of the intended recipients.

Subject: Test
Sent: 7/27/2009 10:26 AM

The following recipient(s) cannot be reached:

'J S' on 7/27/2009 10:27 AM
500 unrecognized command


Any ideas? My ISP said it was not on their end but I get the feeling it is.

If that's the exact text of the message, then I'd say the address you're
trying toi use is inaccurate, you're not properly authenticating to the
outgoing server, or you have an antivirus program integrated with Outlook and
scanning mail.

 

[bfleming]

Brian...thanks for the ideas.

1. The email address I am sending to is good.
2. Trend Micro Virus scan...I turned off the "check outgoing email" and
tried a test.

Here is what I get now.

Your message did not reach some or all of the intended recipients.

Subject: Test
Sent: 7/27/2009 2:08 PM

The following recipient(s) cannot be reached:

'J S' on 7/27/2009 2:08 PM
503 Valid RCPT command must precede DATA

Any help would be much appreciated.

 

[Brian Tillman [MVP - Outlook]]

1. The email address I am sending to is good.
2. Trend Micro Virus scan...I turned off the "check outgoing email" and
tried a test.

Here is what I get now.

Your message did not reach some or all of the intended recipients.

Subject: Test
Sent: 7/27/2009 2:08 PM

The following recipient(s) cannot be reached:

'J S' on 7/27/2009 2:08 PM
503 Valid RCPT command must precede DATA

This is a sign that the AV's mail scanner is still interfering. Completely
uninstall your AV program and reinstall it without the mail scanning feature.
You will be just as protected and the AV program won't interfere.

 

[bfleming]

Brian,

I'll give it a try...thanks for the help

This is a sign that the AV's mail scanner is still interfering. Completely
uninstall your AV program and reinstall it without the mail scanning feature.
You will be just as protected and the AV program won't interfere.