[zanata-users] Setting up Zanata with Docker

[Kyle]

It seems I solved my problem. The "unexpected error" was caused by a 
couple of misconfigured options in Postfix, which first of all was 
trusting 172.18.0.1/16 instead of 172.18.0.0/16, and also was sending an 
invalid hostname as a response to the helo command. The misconfigured 
address space was what appears to have caused the unexpected error. The 
invalid hostname just kept mail from being sent, because the recipient's 
mail server rejected the invalid helo response. Once I found and fixed 
these misconfigurations, both creating a new user and updating an 
existing user's e-mail address started working as expected, and the 
unexpected errors went away. Thanks again for the help.
Imetumwa kutoka nyumbani kwangu