Actually, the answer isn't dependent on Sendmail. Your best bet is a listserv like Majordomo or mailman...one or both of which might already be installed on your system.
You create the list, add the appropriate aliases into your /etc/mail/aliases file, run newaliases, and then whenever you want to add/remove customers from that list, it's a simple text edit. By using a list manager, also, you can restrict who can send mail to that list of customers...there are password protections, restrictions on who can mail the list, etc. Or, since he's using Outlook Express, he can put all 3000 customers into his contact list, then create a group that contains all 3000 customers, and email them by putting their addresses on the BCC line...but I wouldn't recommend it, as the message headers would be horrendously large. On Tue, 3 Dec 2002 [EMAIL PROTECTED] wrote: > Hello group, > > I am new to sendmail if a sound stupid please forgive me.I have request that > we have around 3000 users and I want to send a single mail to everybody .The > administrator should put [EMAIL PROTECTED] into "To: of the > outlookexpress" and that mail should delivered to all the customer of > kaushalender.com .How can I do this into sendmail.Plz help > > Thanx a ton in advance > > Kaushalender > > > > > _______________________________________________ > Seawolf-list mailing list > [EMAIL PROTECTED] > https://listman.redhat.com/mailman/listinfo/seawolf-list > -- Mike Burger http://www.bubbanfriends.org Visit the Dog Pound II BBS telnet://dogpound2.citadel.org or http://dogpound2.citadel.org:2000 _______________________________________________ Seawolf-list mailing list [EMAIL PROTECTED] https://listman.redhat.com/mailman/listinfo/seawolf-list