Specifying a Global HostName for SMTPDA In MailSite 8.0.5 and later you can specify which HostName SMTPDA should use when sending out email. This can be done in the form of a Registry or Database change depending upon which Connector type you are running:

Registry Configuration

WARNING!!
Incorrectly editing the Registry can damage the server, please proceed with care.

1. Click on the Start button.
2. Select Run, and enter Regedit
3. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SMTPDA\Parameters
4. Create a new String and name it OutboundHostName
5. Hit Enter and then specify the desired name, e.g. mail.domain.com
6. OK and Exit out of Regedit
7. Restart SMTPDA

SQL Connector Configuration

1. Open the SQL Manager to the MailSite Database.
2. Open the 'MailServerProperties'
3. Enter the following: ServiceName = smtpda
   PropertyName = OutboundHostName
   ServerRoleID = 0
   PropType = 1
   PropIntValue = 0
   PropStringValue = mail.server.com
   
4. Restart SMTPDA

MailSite will now use the defined HostName whenever it delivers a message to a remote site, regardless of which IP/HostName the email arrived on to the server.