I would like to ask is having a mail server at home using dynamic IP is possible. I am in need of a mail server to send emails out to all my customers which my share hosting service provider has stop me due to the larger quantity at any one time.
I am force to look for alternative like having my own server at home to hold a new domain and just to do the sending. If having a static IP, I know it is possible, but the cost of having a static IP is far out of my reach. That's why wanted to see if dynamic IP is possible I am not sure if it can be done. Can any one please guide me? thanks
Well, most mail servers these days block dynamic IP addresses due to spam. You can set one up but chances are it will not work.
If its for a small number of accounts, you could probably give Google Apps a shot, you can set it up with your domain and use it with good old fashioned IMAP
As noted by Journeyman Geek the mail server at home will not work - your IP range will be 'wrong'.
I suspect that you are not sending out your newsletter/emails the right way. If you put a newsletter mailer program on your server then you can s-l-o-w-l-y send emails out. This will keep your ISP happy. Investigate phplist - it is used by Greenpeace and it will also enable your customers to opt out of mailings. Because it is open Source you can edit the code and put any customer-specific, tailored content that you need to.