1. If your connecting with windows/mac DUN or Manual connection ("Dial" or "Connect" button) : Your username needs to be in the following format: username@550access.com If your connecting with any of 550access software ("Sign On" button) : Your username is entered without the domain"@550access.com" So its simply, just your username.
2. Accelerator Account Name: Needs to be in the following format: username@550access.com
3. Account Name or User Id for your Email client or logging into your webmail needs to be in the following format: username@550access.com & Your incoming mail server is pop.550access.com & outgoing mail server is smtp.550access.com; be sure that you have checked "outgoing mail server requires authentication."
4. To log into your member section (550access.com -> Log in); your username is entered without "@550access.com"