Email recipient limit in outlook 2003

[Jeetus Maximus]

Good Morning,

We have outlook 2003 running via an exchange server. One of our users is
trying to send an email to a large number of contacts in their address book.
They are not using a personal or company distribution list. They have simply
populated the "To" field with each persons email address (not sure how many
email addresses but looks like a lot, possibly more than a 100).

When the user clicks "Send" the email just freezes and so does outlook. The
only way to come out of it is to cancel the outlook.exe process in task
manager and then restart outlook.

Could this be down to a limit on the amount of recipients in the "To" field
in outlook 2003?

Any advice would be much appreciated

 

[neo]

There are settings in Exchange server than control recipient count. You
don't mention what version of Exchange, but if I was to assume Exchange
2003, then its default is 5000 recipients per message.

I would check and see what types of 3rd party things are installed that
integrate/use Outlook data. For example, antivirus, antispam, instant
messaging, indexing, .etc. as any of these could influence Outlook's
behavior.

 

[Carmel]

There are settings in Exchange server than control recipient count.
You don't mention what version of Exchange, but if I was to assume
Exchange 2003, then its default is 5000 recipients per message.

I would check and see what types of 3rd party things are installed
that integrate/use Outlook data. For example, antivirus, antispam,
instant messaging, indexing, .etc. as any of these could influence
Outlook's behavior.

Please visit this URL:

http://support.microsoft.com/kb/112761

Take note of this:

NOTE: The successful test of 300 recipients is well over the 100
specified by RFC 821. Also note that many mail hosts on the Internet
may not support more than 100 recipients.

You should probably check with your ISP. You are probably tripping a
SPAM trigger on their SMTP servers. You might even get yourself
blacklisted.

Why isn't a mail manager being used? Something like Mailman
<http://www.gnu.org/software/mailman/index.html>, although it doesn't
work on a Win32 platform, would seem like the most logical way to
handle this problem.

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