Title: Wrong Certificat Failure Last modified: June 7, 2020 --- # Wrong Certificat Failure * Resolved [kingnoppy](https://wordpress.org/support/users/kingnoppy/) * (@kingnoppy) * [6 years ago](https://wordpress.org/support/topic/wrong-certificat-failure/) * I got an issue when I connect the Easy WP SMTP plugin without permission of “ Insecure SSL Certificates”. The Mailserver certificate is secure and valid, it is an wildcard ssl certificat. If I set “Allow Insecure SSL Certificates” it works fine. Any ideas why it will not work with wildcard certificates? * Any help is appreciated . Viewing 10 replies - 1 through 10 (of 10 total) * [mbrsolution](https://wordpress.org/support/users/mbrsolution/) * (@mbrsolution) * [6 years ago](https://wordpress.org/support/topic/wrong-certificat-failure/#post-12957822) * Hi, can you enable debug mode and then carry out a test. Report back with any findings. * Thank you * Thread Starter [kingnoppy](https://wordpress.org/support/users/kingnoppy/) * (@kingnoppy) * [6 years ago](https://wordpress.org/support/topic/wrong-certificat-failure/#post-12958766) * This is the result out of the debug logfile: —————————————————————- Easy WP SMTP debug log file Cryptor::decryptString() – data length 12 is less than iv length 16Cryptor::decryptString() – data length 12 is less than iv length 16Cryptor:: decryptString() – data length 12 is less than iv length 16 * This is the debug log form on the testmail site: —————————————————————- CLIENT- > SERVER: EHLO euronethosting.shop CLIENT -> SERVER: STARTTLS CLIENT -> SERVER: EHLO euronethosting.shop CLIENT -> SERVER: AUTH LOGIN CLIENT -> SERVER: YmVzdGVsbHVuZ0BldXJvbmV0aG9zdGluZy5zaG9w CLIENT -> SERVER: SMTP ERROR: Password command failed: 535 5.7.8 Error: authentication failed: UGFzc3dvcmQ6 SMTP Error: Could not authenticate.CLIENT -> SERVER: QUIT SMTP Error: Could not authenticate. * One issue or something unexpectable: the correct mail server is mail.euronetmail. com and this one is correct entered in the first page. * Thread Starter [kingnoppy](https://wordpress.org/support/users/kingnoppy/) * (@kingnoppy) * [6 years ago](https://wordpress.org/support/topic/wrong-certificat-failure/#post-12958791) * Thank you for your kind assistance. * [mbrsolution](https://wordpress.org/support/users/mbrsolution/) * (@mbrsolution) * [6 years ago](https://wordpress.org/support/topic/wrong-certificat-failure/#post-12958942) * Hi, * > SMTP ERROR: Password command failed: 535 5.7.8 Error: authentication failed: > UGFzc3dvcmQ6 * Can you verify with your host the above error message? * Thank you * Thread Starter [kingnoppy](https://wordpress.org/support/users/kingnoppy/) * (@kingnoppy) * [6 years ago](https://wordpress.org/support/topic/wrong-certificat-failure/#post-12959098) * …regarding this report: I forgot to enter the password before activation debuging * Thread Starter [kingnoppy](https://wordpress.org/support/users/kingnoppy/) * (@kingnoppy) * [6 years ago](https://wordpress.org/support/topic/wrong-certificat-failure/#post-12959148) * when I now check, debug log remains empty….. * the debug log at the test sending page, * when * <> * is enabled: * CLIENT -> SERVER: EHLO euronethosting.shop CLIENT -> SERVER: STARTTLS CLIENT- > SERVER: EHLO euronethosting.shop CLIENT -> SERVER: AUTH LOGIN CLIENT -> SERVER: YmVzdGVsbHVuZ0BldXJvbmV0aG9zdGluZy5zaG9w CLIENT -> SERVER: NDAwX2tPbW1lKzQ0 CLIENT- > SERVER: MAIL FROM: CLIENT -> SERVER: RCPT TO: CLIENT -> SERVER: DATA CLIENT -> SERVER: Date: Tue, 9 Jun 2020 09:45:31 +0000 CLIENT -> SERVER: To: [christoph@noppeney.me](https://wordpress.org/support/topic/wrong-certificat-failure/christoph@noppeney.me?output_format=md) CLIENT -> SERVER: From: =?UTF-8?Q?HOSTING_SHOP_F=C3=9CR_3CX_PBX?= CLIENT -> SERVER: Reply-To: =?UTF-8?Q?HOSTING_SHOP_F=C3=9CR_3CX_PBX?= < bestellung@euronethosting.shop> CLIENT -> SERVER: Subject: Test CLIENT -> SERVER: Message-ID: CLIENT -> SERVER: X-Mailer: PHPMailer 5.2.27 ([https://github.com/PHPMailer/PHPMailer](https://github.com/PHPMailer/PHPMailer)) CLIENT -> SERVER: MIME-Version: 1.0 CLIENT -> SERVER: Content-Type: text/plain; charset=UTF-8 CLIENT -> SERVER: CLIENT -> SERVER: ein Test CLIENT -> SERVER: CLIENT -> SERVER: . CLIENT -> SERVER: QUIT * So you can see it works fine. * In case of disabling this debug log on test page remains empty but with a failure message (Following error occurred when attempting to send test email: SMTP Error: Could not connect to SMTP host.) and a red strip at the left side. * [mbrsolution](https://wordpress.org/support/users/mbrsolution/) * (@mbrsolution) * [6 years ago](https://wordpress.org/support/topic/wrong-certificat-failure/#post-12959234) * Hi, * > In case of disabling this debug log on test page remains empty but with a > failure message (Following error occurred when attempting to send test email: > > SMTP Error: Could not connect to SMTP host.) and a red strip at the left side. * Your best option is to speak to your host about this issue. I am curious to know myself why it is not working with your host. * Thank you * Thread Starter [kingnoppy](https://wordpress.org/support/users/kingnoppy/) * (@kingnoppy) * [6 years ago](https://wordpress.org/support/topic/wrong-certificat-failure/#post-12959348) * I think the issue is coming out of the plugin, any client can connect to the host (mail.euronetmail.com) outlook, thunderbird, etc. just your plugin. If I connect to a mailhost with a non wildcard certificate, it works fine. Just with the wildcard it will only work with the enabled function: <> * Best regards Christoph * [mbrsolution](https://wordpress.org/support/users/mbrsolution/) * (@mbrsolution) * [6 years ago](https://wordpress.org/support/topic/wrong-certificat-failure/#post-12959395) * Hi, * Please check the following [Troubleshooting](https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting) steps. Let me know if this helps you. * Thank you * Thread Starter [kingnoppy](https://wordpress.org/support/users/kingnoppy/) * (@kingnoppy) * [5 years, 12 months ago](https://wordpress.org/support/topic/wrong-certificat-failure/#post-12972532) * Hi, * checked the ssl certs and replaced them, now it works fine. * Thank you for your assistance. * Regards Christoph Viewing 10 replies - 1 through 10 (of 10 total) The topic ‘Wrong Certificat Failure’ is closed to new replies. * ![](https://ps.w.org/easy-wp-smtp/assets/icon.svg?rev=3158017) * [Easy WP SMTP – WordPress SMTP and Email Logs: Gmail, Office 365, Outlook, Custom SMTP, and more](https://wordpress.org/plugins/easy-wp-smtp/) * [Frequently Asked Questions](https://wordpress.org/plugins/easy-wp-smtp/#faq) * [Support Threads](https://wordpress.org/support/plugin/easy-wp-smtp/) * [Active Topics](https://wordpress.org/support/plugin/easy-wp-smtp/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/easy-wp-smtp/unresolved/) * [Reviews](https://wordpress.org/support/plugin/easy-wp-smtp/reviews/) * 10 replies * 2 participants * Last reply from: [kingnoppy](https://wordpress.org/support/users/kingnoppy/) * Last activity: [5 years, 12 months ago](https://wordpress.org/support/topic/wrong-certificat-failure/#post-12972532) * Status: resolved