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XP Pro Outlook 2003 POP e-mail Error 452: too many recipients using DL

By Alan ·
When I send an e-mail with a number of e-mail addresses in the BCC address box, a significant number of them are listed in an error message report from System Administrator E-Mail Type SYSTEM. Sample follows:-
Your message did not reach some or all of the intended recipients.

Subject: Adult Baptism Celebration at the Chapel.
Sent: 22/10/2008 09:41

The following recipient(s) could not be reached:

Sue Hetherington on 22/10/2008 09:41
452 Error: too many recipients

Mike Mooney on 22/10/2008 09:41
452 Error: too many recipients

Violet Watkins on 22/10/2008 09:41
452 Error: too many recipients

Mike Ray on 22/10/2008 09:41
452 Error: too many recipients

Stella.sims@ic24.net on 22/10/2008 09:41
452 Error: too many recipients

'John Thompson' on 22/10/2008 09:41
452 Error: too many recipients

Any help would be much appreciated. I can not find any specific help or advice on how to fix this problem.

My ISP says there are no limits on their e-mail. I SMTP Outbound via smtp.OrangeHome.co.uk and POP via 1and1.co.uk.

If the faile are send later most will go and some will fail. eventualy they all go confirming the e-mail addresses are OK.

Thanks in advanace.

Alan Vincent

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What are the limitations of sending bulk e-mails?

by Jacky Howe In reply to XP Pro Outlook 2003 POP e ...

http://faq.1and1.co.uk/
<br><br>
< edit The link doesn't open in the right place.>
<br><br>

We have introduced a SPAM Blocker on our Mailservers.
<br>
What happens is that we will block mail from a specific sending IP address for 15 minutes if one of the following criteria is met:
<br>
Number of recipients (not mails) >= 100 or >= 50 mail to the same recipient (mail bomb or misconfigured mailer or server) continuous stream of incoming mail (the counter resets after 8 minutes)
<br><br>

The block will stay on as long as an IP "fulfills" these requirements.
<br>
It will be taken off automatically after 15 minutes of "clean" operation.
<br><br>
<i>Keep us informed as to your progress if you require further assistance.</i>
<br><br>
<i>If you think that any of the posts that have been made by all TR Members, have solved or contributed to solving the problem, please Mark them as <b>Helpful</b> so that others may benefit from the outcome.
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