email creator gmail email accounts

I am using an automated link buidling software it has free email address using the software's domains. These free emails look too spammy, and when I use them to register Wordpress etc, I often get Email has already been used warning. Can anyone recommend a software that create either...

Although this isn't something new I figured I'd post it here as a lot of people are always in need of good emails. You can use one Gmail address and get as many as you need. The only drawback is you can't use it for Google related products such as Adsense, YouTube etc,. If you want a calculated...