In case you work under a firewall and do not have access to SMTP 25 port you can use a special email verifying script as an addition to software. To use it, you should upload PHP script to any Shared, VPS or Dedicated Linux web hosting and specify script URL in software settings. This mode and script is available only with Professional Edition of software.
Advantages:
- It allows to verify unlimited number of email addresses
- Easy setup
Setup instructions:
In order to test the script at your hosting:
1. Please download test script.
2. Upload script to web server
3. Specify the next settings:
Website: specify the URL of uploaded script.
Password: specify password to get access to script.
4. Then click "Test" button.
Note: Script doesn't work at some hosting providers,
because they block smtp port
or some php functions: 1and1.com, godaddy.com,
webhostingpad.com.