Multiple recipient email delivery best practices?

[Lee Smith]

In my app, I've got products that a user can subscribe to emails
updates...when somebody updates the product's attributes, they get an
email.

My question is how do I deliver that email so that all the user's
email addresses are NOT in the "TO:" line, only the individual's email
address? I'm currently sending my mailer an array of email
addresses. Is that bad form? Should I instead loop over each user
subscribed to email alerts and call my mailer once for each user?
That seems like bad practice...

Thanks for any advice.

[Greg Donald]

This is what Bcc: is for.. populating the envelope without the users
knowing about each other.



--
Greg Donald
http://destiney.com/

[Lee Smith]

Ok so the 'recipients' field is not required then...I can simply swap
'recipient' for 'bcc'? That sounds easy enough...thanks.

[Dave English]

In message
<e5ec1bf2-b5e6-48f6...@m11g2000vbo.googlegroups.com>, Lee
Smith <auti...@gmail.com> writes

>Ok so the 'recipients' field is not required then...I can simply swap
>'recipient' for 'bcc'?

That's right

> That sounds easy enough...thanks.

The advantage for your users is that their e-mail addresses are not
disclosed.

The advantage for you is that it is only one e-mail, with a single
message ID, out to your SMTP smarthost & perhaps beyond.

http://en.wikipedia.org/wiki/Blind_carbon_copy

Regards
--
Dave English - da...@lutnos.com

[Lee Smith]

Thanks the help!