unencrypted emai

symbian1symbian · 15 Sep 2024, 04:50 AM

We have a Windows server with Plesk control panel installed, and we use a separate program called MailEnable for sending emails. From some domains hosted on the server, users are unable to send emails to Yahoo, though sending to Gmail works fine.

I noticed a difference between the domains that cannot send to Yahoo. When sending to Gmail, a "non-encryption" lock icon appears, whereas for other domains on the same server, this icon doesn't show. These domains have the same nameservers and both connect directly to the server.

I checked the mail settings in Plesk for both domains, and there were no differences. I also tried configuring the same SSL certificate under SSL/TLS certificate for mail for the domains, and sometimes the problem is resolved when I install a certificate via the Let's Encrypt plugin. However, my supervisor mentioned that this may only work because I?m sending emails through Thunderbird, and since that system has its own public IP, the issue might still be unresolved.

Bamb0 · 15 Sep 2024, 08:16 AM

Welcome to EMD

I dont really see the need for ENCRYPTED EMAIL. I mean no one should be sending anything critical over the internet anyway!!

Nothing should be considered safe!!

I dont send anything really confidential over email so I would still use a server that was like fastmail used to be.... (When they didnt force SSL)

n5bb · 16 Sep 2024, 07:50 AM

I?m sure that the original poster was referring to MTA server-to-server encryption (which is now pretty much standard) rather than client level encryption.

My guess is that the issue may have to do with MTA-STS or some other security steps related to transport level security. See:

https://en.wikipedia.org/wiki/Simple...sport_Security

https://mxtoolbox.com/dmarc/details/...mta-sts-record

https://en.wikipedia.org/wiki/SMTPS

Bill

15 Sep 2024, 04:50 AM	#1
symbian1symbian Junior Member Join Date: Sep 2024 Posts: 1	unencrypted emai We have a Windows server with Plesk control panel installed, and we use a separate program called MailEnable for sending emails. From some domains hosted on the server, users are unable to send emails to Yahoo, though sending to Gmail works fine. I noticed a difference between the domains that cannot send to Yahoo. When sending to Gmail, a "non-encryption" lock icon appears, whereas for other domains on the same server, this icon doesn't show. These domains have the same nameservers and both connect directly to the server. I checked the mail settings in Plesk for both domains, and there were no differences. I also tried configuring the same SSL certificate under SSL/TLS certificate for mail for the domains, and sometimes the problem is resolved when I install a certificate via the Let's Encrypt plugin. However, my supervisor mentioned that this may only work because I?m sending emails through Thunderbird, and since that system has its own public IP, the issue might still be unresolved.

15 Sep 2024, 08:16 AM	#2
Bamb0 Master of the @ Join Date: Feb 2005 Location: USA Posts: 1,979	Welcome to EMD I dont really see the need for ENCRYPTED EMAIL. I mean no one should be sending anything critical over the internet anyway!! Nothing should be considered safe!! I dont send anything really confidential over email so I would still use a server that was like fastmail used to be.... (When they didnt force SSL)

16 Sep 2024, 07:50 AM	#3
n5bb Intergalactic Postmaster Join Date: May 2004 Location: Irving, Texas Posts: 8,965	I?m sure that the original poster was referring to MTA server-to-server encryption (which is now pretty much standard) rather than client level encryption. My guess is that the issue may have to do with MTA-STS or some other security steps related to transport level security. See: https://en.wikipedia.org/wiki/Simple...sport_Security https://mxtoolbox.com/dmarc/details/...mta-sts-record https://en.wikipedia.org/wiki/SMTPS Bill