Hi track77. Was there an error message when using PHP 5.6? I only have PHP 5.5.14 in my dev environment.
Message: could not open socket.
Debug:
[06-Apr-2015 01:11:10 UTC] DEBUG PostmanWpMailBinder: Binding to wp_mail()
[06-Apr-2015 01:11:10 UTC] DEBUG PostmanWpMailBinder: Bound to wp_mail()
[06-Apr-2015 01:11:10 UTC] DEBUG Postman: Postman Smtp v1.5.11 starting
[06-Apr-2015 01:11:11 UTC] DEBUG PostmanSendTestEmailAjaxController: Found parameter name email
[06-Apr-2015 01:11:11 UTC] DEBUG PostmanSendTestEmailAjaxController: al..k@ukr.net
[06-Apr-2015 01:11:11 UTC] DEBUG PostmanSendTestEmailAjaxController: Found parameter name method
[06-Apr-2015 01:11:11 UTC] DEBUG PostmanSendTestEmailAjaxController: wp_mail
[06-Apr-2015 01:11:11 UTC] DEBUG PostmanSendTestEmailController: Sending Test email
[06-Apr-2015 01:11:11 UTC] DEBUG PostmanWpMail: Sending mail
[06-Apr-2015 01:11:11 UTC] DEBUG PostmanMailEngineFactory: Ensuring Access Token is up-to-date
[06-Apr-2015 01:11:11 UTC] DEBUG PostmanAuthenticationManagerFactory: Created PostmanGoogleAuthenticationManager
[06-Apr-2015 01:11:11 UTC] DEBUG PostmanGoogleAuthenticationManager: Access Token Expiry Time is 1428286132, expires_in=3461, expired=no
[06-Apr-2015 01:11:11 UTC] DEBUG PostmanMessage: Processing Content-Type Header - Content-Type: multipart/alternative;
[06-Apr-2015 01:11:11 UTC] DEBUG PostmanMessage: User Added recipient: "al..k@ukr.net"
[06-Apr-2015 01:11:11 UTC] DEBUG PostmanMailEngine: Building Postman_Zend_Mail with charset=UTF-8
[06-Apr-2015 01:11:11 UTC] DEBUG PostmanMailEngine: Adding content-type multipart/alternative
[06-Apr-2015 01:11:11 UTC] DEBUG PostmanMailEngine: From email=3..o@gmail.com name=track77
[06-Apr-2015 01:11:11 UTC] DEBUG PostmanMailEngine: To email=al..k@ukr.net
[06-Apr-2015 01:11:11 UTC] DEBUG PostmanMailEngine: Adding body as multipart/alternative
[06-Apr-2015 01:11:11 UTC] DEBUG PostmanOAuth2MailAuthenticator: Using auth oauth2 with encryption ssl to smtp.gmail.com:465
[06-Apr-2015 01:11:11 UTC] DEBUG PostmanMailEngine: Sending mail
[06-Apr-2015 01:11:11 UTC] ERROR PostmanWpMail: Postman_Zend_Mail_Protocol_Exception code=0 message=Could not open socket
[06-Apr-2015 01:11:11 UTC] ERROR PostmanSendTestEmailController: Test Email NOT delivered to server - 0
[06-Apr-2015 01:11:11 UTC] DEBUG PostmanSendTestEmailAjaxController: statusmessage: Could not open socket
My guess is your php.ini for PHP 5.6 restricts opening ports, or your PHP 5.6 was compiled without the Streams extension.
extension=php_sockets.dll
You right – the another plugin write a debug message:
PHP Warning: PHP Startup: Unable to load dynamic library 'php_sockets.dll' - php_sockets.dll: cannot open shared object file: No such file or directory in Unknown on line 0