Email without encryption

leonardoasb

Registered
Oct 23, 2015
4
1
3
Brasil
cPanel Access Level
Root Administrator
Hello everyone,

About two weeks began to show an open red padlock to emails sent parea gmail . Says the messages are not encrypted , how can I fix this?

I have an ssl certificate on my server .

Thank you very much in advance.
 

cPanelMichael

Administrator
Staff member
Apr 11, 2011
47,904
2,226
463
Hello :)

This is discussed by Google at:

Official Gmail Blog: Making email safer for you

To clarify, are the emails in your Google account from the cPanel server showing this warning, or is this just a general question about your Google account?

Thank you.
 

cPanelMichael

Administrator
Staff member
Apr 11, 2011
47,904
2,226
463
New In my case emails in your Google account from the cPanel server showing this warning. Could help me how can I install standard TLS encryption over this connection?
What port number did you use when configuring your email account with Gmail? Ensure you use ports 995 for POP3 SSL, 993 for IMAP SSL, and 465 for SMTP SSL.

Thank you.
 

saurabhnsonar

Member
Nov 29, 2010
9
0
51
Sorry, you're getting me wrong. Actually email I send from my server to gmail shows that encryption: hostname did not encrypt this message. I want to know how can we encrypt the message with standard tls?
 

cPanelMichael

Administrator
Staff member
Apr 11, 2011
47,904
2,226
463
Sorry, you're getting me wrong. Actually email I send from my server to gmail shows that encryption: hostname did not encrypt this message. I want to know how can we encrypt the message with standard tls?
Your server should utilize the STARTSSL command when initiating the SMTP session to Gmail. Please post the output from the following command on your system:

Code:
telnet gmail-smtp-in.l.google.com 25
Ensure to replace real domain names and IP addresses with examples.

Thank you.
 

saurabhnsonar

Member
Nov 29, 2010
9
0
51
Your server should utilize the STARTSSL command when initiating the SMTP session to Gmail. Please post the output from the following command on your system:

Code:
telnet gmail-smtp-in.l.google.com 25
Ensure to replace real domain names and IP addresses with examples.

Thank you.

I get the following output for this:

Code:
# telnet gmail-smtp-in.l.google.com 25
Trying 74.125.138.26...
Connected to gmail-smtp-in.l.google.com.
Escape character is '^]'.
220 smtp.passthru
Connection closed by foreign host.
 

cPanelMichael

Administrator
Staff member
Apr 11, 2011
47,904
2,226
463
220 smtp.passthru
Hello,

Could you check with your service provider to see if they are intercepting outbound SMTP traffic in order to filter it? It looks like that's potentially the reason for this issue.

Thank you.