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I am building a simple e-mail application to send emails to a list of people with an attachment.

To be able to add an attachment (from what I have found out) I need to use System.Web.Mail.

Is there any limit to how many email addresses I can send to at once?

Fred
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  • Most likely if you add as many addresses to one email as theoretically possible, you will run afoul of every spam filter in existence. – Moose May 07 '09 at 14:23
  • Just an FYI, System.Web.Mail has been deprecated and it is now recommended to use System.Net.Mail – Mike_G May 07 '09 at 14:25
  • I missed that I could use Attache with System.Net.Mail. So I changed to System.Net.Mail instead. Thank you for the comment! – Fred May 13 '09 at 14:39

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Email Protocol should not inherently limit the number of emails sent. Any limits you'll run into will most likely be imposed by your server or ISP.

Zachery Delafosse
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