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cjackson
10-25-2007, 08:50 PM
We are a Senior Center, using a LAN. One of the PCs on the network is a new Dell running Windows XP professional. This PC is in our office and we send out E-mail messages to our members.

Recently we sent an E-mail message out to over 200 members, some in the "To" block, some in the "CC" block and the rest in the "BCC" block and received an error message back, telling us that we had too many recipients. The error code was 421. This E-mail remained in the Out Box and since this happened, we were unable to either send or receive any E-mail. We deleted the message and normal E-mail service was restored. The person in the office said she had done this many times before, without any error messages.

The only change in our system is that we went on the AVG free anti-virus program about the time the error occurred. Any ideas on why this might have happened?

Thanks for any theories.


C. Jackson
pentachris
10-25-2007, 09:01 PM
That doesn't sound like a Outlook Express issue, or an issue with the computer the email was composed on. Rather, it sounds like an error returned from your email SMTP server.

further reading link (http://email.about.com/cs/standards/a/smtp_error_code.htm)
FrankSG
10-25-2007, 09:08 PM
since this happened, we were unable to either send or receive any E-mail.

If I'm understanding you right, the message is stuck in your out-box. What you may have to do is go to your Out-box and delete the message in there.
mjc
10-25-2007, 09:12 PM
Too many variables to pin it down exactly. But, it is fairly common for a 'stuck' message to hold up service, so that part isn't too strange.

It is possible that one of the addresses is 'malformed' which could cause an error, especially if AVG were scanning it. Actually, come to think of it...AVG could have balked at the number of addressees.
cjackson
10-26-2007, 08:09 AM
Thanks for all the replies. Yes, when I delete the message, things work OK again. Office user claims this didn't happen until AVG was installed, so that's probably the culprit. The error message did refer to a bad address, but when I eliminated that address, it went on to the next, and so on, so none of the addresses were bad. The error message did come from the server.

Thanks again.

CFJ
mjc
10-26-2007, 10:24 AM
There should be an option in AVG to turn off the scan for out-going messages...