There are number of web hosting companies which are providing mail services. You can easily get one of their plan which will give you the liberty of giving your website users a mail attached with your domain name. I found one such company and i talked to their customer support executive about this situation and they give me two such plans which fulfills your criteria. With these plans you will not get only emails but you can host your websites over here. You will have power to create unlimited emails and you can distribute it among your users. Some of my friends are using services of hostgator and they have liked it's services, now they are promoting this website also and getting good money. I am not promoting this website so no need to worry about fake promises, you can check it on yourself because i am giving you website address not my link. They also give 30 days trial period, so if not satisfied you can pull out within time limit and your money will be refunded to you. They also guarantee 24/7/365 phone support with 99.9% uptime. Website - http://forums.xisto.com/no_longer_exists/- BABYdisk space - 100 gbbandwidth - 1000gbmonthly price - $9.95Plan2 - SWAMPdisk space - 200 gbbandwidth - 2000gbmonthly price - $14.95common features in both plans- unlimited- domain, subdomain, pop3account, webmail, email aliasmail features - auto responder,spam protector, catch alls, mailing list, smtp, mail forwardThese Plans come into shared category. I am not quite sure about this thing but you can get more details once you go to their website and check these details on yourself.