Enable TLS 1.2 Encryption on Windows XP/2008/7/Windows 2008 R2

TLS is the successor of SSL, EASendMail supports SSL 3.0/TLS 1.0 - TLS 1.2 very well. In EASendMail, ConnectSTARTTLS doesn't mean TLS encryption, it means STARTTLS command in SMTP protocol.

You don't have to set any property to enable TLS 1.2 encryption. If your server requires TLS 1.2 encryption, TLS 1.2 encryption is used automatically with ConnectSSLAuto, ConnectSTARTTLS or ConnectDirectSSL.

To enable TLS 1.2 on some legacy systems, you need to install the following update/packages:


Windows XP/2003 32bit (x86)


Windows 2008 SP2


Windows 2008 R2/7


Enable TLS 1.2 with IE 8.0 on Windows XP

To use WebBrowser Control + OAUTH/XOAUTH2 on Windows XP, you need to enable TLS 1.2 in IE8 like this:

Enable TLS 1.2 with EWS on Windows XP

Enable TLS 1.1/1.2 with EWS on Windows 7/2008 R2/2012/2012 R2

Enable TLS Strong Encryption Algorithms in .NET 20 and .NET 4.0

Online Examples

Send Email over SSL/TLS - C#
Send Email over SSL/TLS - Visual Basic
Send Email over SSL/TLS - C++/CLI

Online Tutorial

Send Email over SSL/TLS in C#
Send Email using Gmail in C#
Send Email using Yahoo in C#
Send Email using Hotmail/Live in C#

Send Email over SSL/TLS in VB
Send Email using Gmail in VB
Send Email using Yahoo in VB
Send Email using Hotmail/Live in VB

Send Email over SSL/TLS in C++/CLI
Send Email using Gmail in C++/CLI
Send Email using Yahoo in C++/CLI
Send Email using Hotmail/Live in C++/CLI

See Also

Using EASendMail SMTP .NET Component
User Authentication and SSL Connection
Using Gmail SMTP OAUTH
Using Gmail/GSuite Service Account + SMTP OAUTH Authentication
Using Office365 EWS OAUTH
Using Office365 EWS OAUTH in Background Service
Using Hotmail SMTP OAUTH
From, ReplyTo, Sender and Return-Path
DomainKeys and DKIM Signature
Send E-mail Directly (Simulating SMTP server)
Work with EASendMail Service (Email Queuing)
Bulk Email Sender Guidelines
Process Bounced Email (Non-Delivery Report) and Email Tracking
EASendMail .NET Namespace References
EASendMail SMTP Component Samples