Your mailing address, personal information, and primary email address are maintained through PACER.  Log into PACER and click the link for Maintain My Account.  There you will be able to update your mailing and primary email addresses.  When making the change in PACER, ensure that you submit the change to the Northern District of Georgia.

Secondary email adresses are maintained locally through CM/ECF.  Log into the Northern District of Georgia CM/ECF system here and go to Utilities -> Maintain your E-mail Info.