Hiding recipients

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Subject:Hiding recipients
Summary:How to hide recipients in case BCC shouldn’t be used
Author:Marek Strop
Date:2010-11-25 16:15:54
Update:2010-11-26 21:42:01

  1. Hiding recipients   Reply   Report abuse  
Marek Strop - 2010-11-25 16:15:54

at first, thanks for the class, which I have been using for a while. Right now, I have a need to send a message to recipients, which should not be visible. Typically BCC, but you say in your article, BCC should not be used. So, is there a way, how to do it using your class? Sending multiple emails to each individual recipient is not a solution for me.


  2. Re: Hiding recipients   Reply   Report abuse  
Manuel Lemos - 2010-11-26 05:08:56 - In reply to message 1 from Marek Strop
Right, SMTP servers do not care what you put in the headers that you send. SMTP servers do not parse the message to extract the sender or recipient address. Those addresses are passed to the SMTP server with special commands.

So, if you want to send messages to implicit recipients, do not put the Bcc header in the message, or else the server will pass that header and will not remove it. Instead, if you use the SendMessage call, put all recipients in the second parameter, which is an array with all addresses that you put in To:, Cc:, Bcc, etc..

Anyway, I always recommend that you use the MIME message class together with the SMTP class, as it takes care of all that and many other details to compose standards compliant messages:


  3. Re: Hiding recipients   Reply   Report abuse  
Marek Strop - 2010-11-26 08:20:08 - In reply to message 2 from Manuel Lemos
Thanks for the replay. My issue is I need to hide the recipients and I am affraid, putting them among all standard adresses will show them on visible recepient list. No?

Yep, I have already downloaded the MIME class, but there are some issues and I had no time to focuse on it ... :-(


  4. Re: Hiding recipients   Reply   Report abuse  
Manuel Lemos - 2010-11-26 21:42:01 - In reply to message 3 from Marek Strop
No, there are no standard or hidden addresses for SMTP. What makes addresses visible is putting them in the headers. Hiding recipient addresses is just a matter of not mentioning them in headers.

Anyway, I recommend that you always use the MIME message class because it will solve all that and other issues that may make the message not arrive the way you want.


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