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And you have the SSL certificate also setup on the SMTP sender? &nbsp;(btw. any certificate will do, domain names are not verified on SMTP connections).
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And you have the SSL certificate also setup on the SMTP sender?  (btw. any certificate will do, domain names are not verified on SMTP connections).

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Post the exact error message + likely someone can assist.<br />
<br />
Also you can use Jetmore's SWAKS tool to debug your connection, as this tool shows enough deep debug info, you'll likely be able to instantly determine the problem(s).<br />
<br />
BTW, having an SSL cert on the sending end of a mail transaction is meaningless.<br />
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Also post the port you're using for submission to gmail - 25, 465, 587, etc...
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Post the exact error message + likely someone can assist.

Also you can use Jetmore's SWAKS tool to debug your connection, as this tool shows enough deep debug info, you'll likely be able to instantly determine the problem(s).

BTW, having an SSL cert on the sending end of a mail transaction is meaningless.

Also post the port you're using for submission to gmail - 25, 465, 587, etc...

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When i sent email from my domain to Gmail, it got security issue since last week. I already had SSL certificate and not expire yet. <br />
How can i resolve this issue?
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When i sent email from my domain to Gmail, it got security issue since last week. I already had SSL certificate and not expire yet. 
How can i resolve this issue?

Mail sent from my domain to Gmail will show security error: &quot;mydomain did not encrypted this message.&quot; even i have SSL certificate install.

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

HTTPS is a protocol for secure communication over a computer network which is widely used on the Internet. HTTPS consists of communication over Hypertext Transfer Protocol (HTTP) within a connection encrypted by Transport Layer Security (TLS) or its predecessor, Secure Sockets Layer (SSL). The main motivation for HTTPS is authentication of the visited website and to protect the privacy and integrity of the exchanged data. HTTPS is widely used for protecting page authenticity on all types of websites, securing accounts and keeping user communications, identity and web browsing private.

SSL / HTTPS

Google’s Gmail is a free email service that allows users to access their email on the web or by using third-party programs that synchronize email content through POP or IMAP protocols.

Gmail

Security is the protection of information systems from theft or damage to the hardware, the software, and the information on them, as well as from disruption or misdirection of the services they provide. The main goal of security is protecting assets, and an asset is anything of value and worthy of protection.  Information Security is a discipline of protecting information assets from threats through safeguards to achieve the objectives of confidentiality, integrity, and availability or CIA for short. On the other hand, disclosure, alteration, and disruption (DAD) compromise the security objectives.

Mail sent from my domain to Gmail will show security error: &quot;mydomain did not encrypted this message.&quot; even i have SSL certificate install.

Mail sent from my domain to Gmail will show security error: "mydomain did not encrypted this message." even i have SSL certificate install.