MailSite Express reports: Error code 16 Could not create socket This error is symptomatic of the DHAP settings locking out 127.0.0.1. Users should upgrade to MailSite version 7 which includes the ability to white list IP address and thus prevent them from being listed on the DHAP list. DHAP is locking out 127.0.0.1 in the blocked addresses:

127.0.0.1::1064517978:1,

which causes express to give out the following error:

There was an error delivering your message. Error code 16 Could not create socket.

when this value is removed MailSite Express will work again:

1. Stop the SMTPRA service
2. Open the registry editor
3. Select HKEY_LOCAL_MACHINE
4. Select SOFTWARE
5. Select Rockliffe
6. Select MAILSITE
7. Click on DHAP
8. Select the ProbationList entry
9. Delete the 127.0.0.1 entry
10. Close the registry editor
11. Restart the SMTPRA service

Be sure to delete the entire entry, the entry should look like the following:

127.0.0.1::1064517978:1,