If you have access to /etc/aliases, this makes your code much easier
If you are worrying about script performance, you can help alleviate the
time it takes your php script to run, pulling out all the email addresses
and inserting them into mail() by having another maintenance script that
pulls out all the email addresses and writes them to a file.
Then, in your alias table, make an entry that is the list name
site-users :include: path/to/file we wrote
---^^^
Name of list
--------------^^^
Required directive for sendmail
And finally, the path to the file we wrote.
Then, all you are passing on the bcc: line is the mail list address
Which you don't want in the to: line, or cc:line, because you don't want
everyone knowing the list name and using it as a spam address.
See Sendmail docs regarding Alias files for further information.
But this lets sendmail do all the work of parsing email addresses and
delivering as efficiently as possible
BTW, the format for an alias file is:
addr1, addr2, addr3
OR
addr1
addr2
addr3
OR, any combination
addr1, addr2
addr3, addr4, addr5
Using aliases to lists is much much quicker than writing all the addresses
using code in your script. You script only has one email address to put in
Bcc: as far as it is concerned.
If you have a list that people are signing up for, then you rewrite your
list file each time someone signs up, instead of rewriting your list every
time you send a mailing to your users.
I use this method. If someone has an argument against this, please let me
know, especially if it is a security concern, because I didn't find any
problems when I came up with it.
Lindsay Adams
PS- you don¹t even have to worry about doing 'makemap hash /etc/aliases <
/etc/aliases' each time the list is updated, and the list can be anywhere
(makemap command depends on how your sendmail is configured)
On 4/8/01 11:49 AM, "Manuel Lemos" <[EMAIL PROTECTED]> wrote:
> Hello Christian,
>
> On 07-Apr-01 07:29:27, you wrote:
>
>> On Friday 06 April 2001 22:47, you wrote:
>>> Hi,
>>> Does anyone know if and what the limit is of bcc that can be used in
>>> the mail() function? Hundreds, thousands?
>
>> If you wonder about approaching such a limit you'll be better off with a
>> real mailinglist manager (mailman, listar, ezmlm, ...)
>
> Mailing list managers do not work differently.
>
> What should be avoided for large number of recipients is using SMTP. It
> degrades queueing exponentially with the number of recipients. Just send the
> message directly to the local queue. Just using sendmail (or some wrapper)
> might do.
>
>
> Regards,
> Manuel Lemos
>
> Web Programming Components using PHP Classes.
> Look at: http://phpclasses.UpperDesign.com/?[EMAIL PROTECTED]
> --
> E-mail: [EMAIL PROTECTED]
> URL: http://www.mlemos.e-na.net/
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>
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