I am managing a website. About 5000 people regsitered in my database and i send them newsletter. Uptil few months back i send newsletter through 30-40 different emails with group of emails in MS-Outlook. But it's realy now time-taking plus technicaly many invalid addresses are now there. So lots of returned mails.
Can somebody tell me about some Free software to send emails to my members. I am using MS Access as database. And how to remove invalid addresses.