You can set a Bcc header by using the 'Bcc' key in the call to MIME::Lite->new. And you can give it multiple addresses by passing a reference to an array of addresses. You might not be able to send 4,000 messages in one go, but you'll certainly be able to send them at a better rate than your current one at a time.
During this period when someone visits our site, a visitor will occasionally get an internal server error which I'm think is related somehow to the mail/sendmail program
Maybe you should consider using a mail server that isn't also your web server.
Your require "Lite.pm" is rather non-standard. You should really replace that with use MIME::Lite. There are a few other unusual pieces of code in there, like the way you unnecessarily read the whole address file into memory. The whole program would benefit from being reviewed by a more expert Perl programmer.
And finally, more and more people are treating pure-HTML email as spam. For example, I never get to see any mail message that doesn't have a plain text version attached. If your message isn't spam then you might consider making it look less like spam.
"The first rule of Perl club is you do not talk about
Perl club."
-- Chip Salzenberg
In reply to Re: Sending out a mass email to our customers
by davorg
in thread Sending out a mass email to our customers
by Anonymous Monk
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