Noted That:

• To install correctly this global-smtp.zip.
• Fisrt Download the global-smtp.zip to your computer
• Extract/Open global-smtp.zip to Your Computer.
• Then, Find readme.txt file inside global-smtp.zip and Open readme.txt.
• Now, Read the Requirements of this plugin. Which Wordpress Version and PHP Version are required to run this Plugin in Your Wordpress Site.
• Then, Follow the the Tips Below.

Start the Tips:

1. First Download "global-smtp.zip" Plugin to your Local Computer. (Click Download)

2. Then, Login to your "yourdomain.com/wp-admin" Dashboard.

3. Then, Click on "Plugins" + "Add New" from left sidemenu of Dashboard.

4. Now, Click on "Upload Plugin" button.

5. Now, Browse "global-smtp.zip" Downloaded plugin from your computer, Where you downloaded global-smtp.zip According to Step – 1 Above then, click on "Install Now"

6. Now, Click on "Active Plugin"

7. Then, See left sidemenu. "Global SMTP" folder is added on left sidemenu. Now, Click on "Global SMTP" folder.

   Noted that: If you do not see "Global SMTP" folder on left sidemenu then, see at left sidemenu "Settings" or "Tools".

8. Now you configure yourself oR Watch video tutorial below about Global SMTP Configurtions and Settings or How to work "Global SMTP" in your WordPress site.

After Activated Plugin According to Step-6 then,

1. Go to "Plugins" + "Installed Plugin" from Wordpress Admin Panel Leftside Menu.
2. or Direct go to: https://yourdomain/wp-admin/plugins.php
3. Then, Find "Global SMTP" Activated Plugin from Plugin List.
4. Then, Click on "Settings" from Plugin that is Global SMTP
5. Now, Edit/Add/Config the setting and Click on "Save Changes" button,

Quick Setup

1. Install the plugin, optionall as an mu plugin.
2. Visit ‘Settings > Global SMTP Setup’ in your dashboard.
3. Copy and paste the sample configuraiton to wp-config.php and update with your SMTP credentials.
4. (optional) Add additional statements to complete the configuration for your smtp server.

Available Constants

Required
GLOBAL_SMTP_HOST – The FQDN of the mail server (supplied by your SMTP provider)
GLOBAL_SMTP_USER – Username for accessing the mail server (most often your email address).
GLOBAL_SMTP_PASSWORD – Password to authenticate your email account.

Optional
GLOBAL_SMTP_FROM – Email address to use for outgoing mail. Uses WordPress defaults when not set. Many hosts will force this to be the same as the username.
GLOBAL_SMTP_FROM_NAME – Name set in the From header for outgoing mail. Uses WordPress defaults when not set.
GLOBAL_SMTP_PORT – Port number for SMTP connection. Assumed as 587 (for tls).
GLOBAL_SMTP_SECURE – Encryption type. Assumed to be ‘tls’. Can be ‘ssl’, ‘tls’, or ‘none’.
GLOBAL_SMTP_AUTH_TYPE – Authentication type. Defaults to ‘LOGIN’, can also be ‘PLAIN’ or ‘NTLM’.

GLOBAL_SMTP_RETURN_PATH - Address to send bounced emails.
GLOBAL_SMTP_REPLYTO_FROM - Email address shown in recipients mail client when clicking "Reply"
GLOBAL_SMTP_DISABLE - Set to true to prevent this plugin from hooking into `wp_mail`. This is useful for environment specific configurations.

Troubleshooting

For troubleshooting, we recommend that you install the check email plugin:
https://wordpress.org/plugins/check-email/

If you add this statement to wp-config.php you will see debug output when sending a test email via that plugin.

define('GLOBAL_SMTP_DEBUG',true);