How to Install Postman SMTP Mailer/Email Log Plugin, Manually
To send email reliably, you must use the SMTP server assigned to that email. If Postman is unable to connect to the right SMTP server, you may have to ask your host to open the ports, or create a new email account managed by your host, or switch hosts!
The Connectivity Test utility will tell you which ports are open and the actions available to you.
Easy install and setup! (Recommended for all users)
Install and activate the plugin through the ‘Plugins’ menu in WordPress.
In the WordPress ‘Settings’ menu select ‘Postman SMTP’.
Choose ‘Start the Wizard’ and follow the instructions.
To manually configure Password Authentication (Intermediate users only)
Choose configure manually
In ‘Transport’, choose ‘SMTP’
In ‘Outgoing Mail Server Hostname’, enter the SMTP Server’s hostname
In ‘Outgoing Mail Server Port’, enter the SMTP Server’s port
In ‘Security’ choose the appropriate type (a good guess is SMTPS for port 465, STARTTLS otherwise)
In ‘Authentication’, choose the authentication type (a good guess is ‘Plain’)
If your Authentication method is not ‘None’, enter your username (probably your email address) and password.
Choose the ‘Message’ tab.
In ‘Envelope From Address’ enter your email address. This MUST be the same address you login to webmail with.
In ‘Message From Address’ enter your email address. Or this can be an alias, mailing list, or group email if you wish.
Choose the Save Changes button.
Send yourself a test email.
To manually configure OAuth 2.0 Authentication (Advanced users only)
Choose configure manually
In ‘Transport’, choose ‘SMTP’
In ‘Outgoing Mail Server Hostname’, enter the SMTP Server’s hostname
In ‘Outgoing Mail Server Port’, enter the SMTP Server’s port
In ‘Security’ choose the appropriate type (a good guess is SMTPS for port 465, StartTLS otherwise)
In ‘Authentication’ choose ‘OAuth 2.0’
Postman will give you a link to the Client ID maintenance page of your email service provider. Create a Client ID for your WordPress site.. instructions for this are detailed in the FAQ
Copy your generated Client ID and Client secret into the plugin’s Settings page.
Choose the ‘Message’ tab.
In ‘Envelope From Address’ enter your email address. This MUST be the same address you login to webmail with.
In ‘Message From Address’ enter your email address. Or this can be an alias, mailing list, or group email if you wish.
Choose the Save Changes button.
Choose the ‘Request OAuth2 Permission’ link and follow the instructions.
Send yourself a test email.
Postman is developed on OS X with PHP 5.5.14 and Apache 2.4.9. Postman is tested in a Red Hat OpenShift environment with PHP 5.3.3 and Apache 2.2.15 with Gmail, Hotmail and Yahoo Mail (US). Postman is tested with mailtrap.io.
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If any errors or problems with the plug-in then write comments.
