A. Stop Surgemail B. Edit nwauth.add and nwauth.txt and globally change old domain name to new domain name. C. Edit surgemail.ini and again change domain names. Note this will likely change the /var/domain_name directory name. D. Change the name of the mail directory [default will be old domain name]. E. Edit webmail.ini and change old to new domain name. Check IMAP and SMTP server names if appropriate. F. run “./surgemail/scripts/webmail.cgi -manager” G. Select s option and specify old/new domain names for converting across users. H. Restart Surgemail and using the web interface, correct any aliases and/or virtual domains which may have redundant new domain names.