Too Many Recipients

I am trying to send my daily e-mail message out. I have sent it to the same number forever. Today, I get this message...

The message could not be sent because one of the recipients was 
rejected by the server. The rejected e-mail address was 
''. Subject 'Closing the Gap...', Account: 
'', Server: '', Protocol: SMTP, 
Server Response: '452 Too many recipients', Port: 25, Secure(SSL):
No, Server Error: 452, Error Number: 0x800CCC79.

...I tried removing the first two that I got this message on, but it just goes to the next one.

In our efforts to further combat spam a recipient limit has been applied to incoming and outgoing email messages. That means that if a NETDOOR customer tries to send to more than 25 recipients or if someone outside of the NETDOOR network tries to send to more than 25 NETDOOR customers at a time it will be rejected by the mail server. If you have a need to send to more than 25 recipients at a time, here's what we suggest:

  • Break the e-mail addresses up into groups of 25 and send multiple messages.
  • Use our commercial mailing list option, which is available for $15/mo.
  • Set up a mailing list. You can do this for free at There are several advantages to this approach. It is very easy there to administer your list (for example, if someone's e-mail address changed) and it also keeps an archive of previous messages in case you need to refer to them.