I am using SMTP PRO in Magento 1.9. When I click "run self-test", I am getting messages

SMTP Pro Self Test Results Sending a test email to your contact form address: [email protected] from [email protected]. Unable to send a test email.

Exception message was: Could not open socket Please check the user guide for frequent error messages and their solutions. Default templates exist. Email communications are enabled.

Please Help me ...thank you

  • make sure credentials are correct and add real email address instead of test mail address
    – Hitesh
    Commented Oct 23, 2018 at 11:10
  • 1. Enable open_ssl php extension 2. Download cacert.pem from curl.haxx.se/docs/caextract.html 3. Specify its path in php.ini e.g: openssl.cafile="E:/wamp64/bin/php/php5.6.19/extras/ssl/cacert.pem" finally 1. Make sure your gmail is allowing low secure apps to sign in, you can turn it on here:google.com/settings/security/lesssecureapps.
    – zus
    Commented Oct 23, 2018 at 11:17

1 Answer 1


First make sure sending mail option is Enable in backend.

to check it, go to System > Configuration > System > Mail Sending Settings in backend.

and set Disable Email Communication option to No and then check self run test.

If this issue still exist then check your SMTP details again.

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