Hi,
You can manually delete the domain from directory of smartermail also.
1- Stop the SmarterMail services.
2- Delete or rename the domain name from directory (default location : C:\SmarterMail\Domains).
3- Start the SmarterMail service, you will find that the domain will de listed from interface.
Regards,
NetGains Support Team
NetGains Technologies Pvt. Ltd.
Making iT Simple
Help Desk: +91-22 - 6139 7100
Website : www.netgainstechnologies.com