Why is my outgoing mail not working?

[admin]

Outgoing mail is probably the most complex part of Ability Mail Server and often leads to problems. However, there are 2 ways provided by Ability Mail Server which help determine the source of the problem. The first option is to run the system diagnostics (available in Tools). If this doesn't turn up any results then you can look at the logs (files named 'smtp' or 'outmail'). Usually when there is a serious problem it gets listed in the log. If you are still unable to highlight the problem, you should check the settings of your mail client.