There is this product, Easy Mail Merge for Outlook which can help
you create
an mail merge and schedule the emails to not be sent all at once, so
you will
not have any problems with your ISP.
I hope this helps you.
I'm not the one with the need to send bulk mails, so why are you
replying to me?
You neglected to mention that product costs $40.
You also neglected to provide a handy link to the product, like:
http://office.microsoft.com/en-us/marketplace/EM012176531033.aspx?CategoryID=CE010719621033
or
http://www.emailaddressmanager.com/merge-emails.html
Sending options for this product are extremely few. There are only 2
choices: Send now or later, and how many e-mails to send per every N
seconds. That doesn't help circumvent anti-spam quotas that limit to
how many recipients you send e-mails per day. For example, a user of
Gmail can send to 500 recipients (that is the total across all
e-mails) per day when using their webmail interface but only to 100
recipients per day if using their POP3 service. That means the OP who
is trying to send to 1000 recipients would need to configure sending
options in a bulk mail program to either send to only 100 recipients
per day over a 10-day period or to use multiple Gmail accounts and
slice up the number of recipients across those multiple accounts (in
this when using Gmail, the bulk mailer would need to slice up the 1000
recipients to 100 recipients in 10 Gmail accounts). The sending
options in this product to comply or circumvent anti-spam quotas is
extremely limited.
Getting a listserver provider would probably cost money. Create a
Yahoo group. When you send e-mail to the group, every member gets a
copy. Identify that the group is for opting in to your mailing list.
I would suggest making it a closed group (so only you decide to whom
you send invites rather than let anyone start a registration that you
need to improve which means you get lots of e-mails from people you
don't know or care about). Make sure that you (moderator) is the only
one allowed to post to ensure other members don't end up bulk mailing
each other by letting them add posts. To opt-in to your Yahoo group
means your users need to create a Yahoo account but newsletters can be
sent to their own e-mail address instead of to their new Yahoo Mail
account.