How does sSMTP work?

How does sSMTP work?

sSMTP is a program which delivers email from a local computer to a configured mailhost (mailhub). One of its primary uses is for forwarding automated email (like system alerts) off your machine and to an external email address. Note: sSMTP is unmaintained. Consider using something like msmtp or OpenSMTPD instead.

Where is sSMTP?

The file is located at /usr/local/etc/ssmtp/ssmtp. conf on FreeBSD systems by default, and /etc/ssmtp/ssmtp. conf on Debian GNU/Linux. Other systems may vary.

What is sSMTP in Linux?

sSMTP is a simple MTA to deliver mail from a computer to a mail hub (SMTP server). sSMTP is simple and lightweight, there are no daemons or anything hogging up CPU; Just sSMTP. Unlike Exim4, sSMTP does not receive mail, expand aliases, or manage a queue.

How do I stop sendmail?

To Disable the sendmail Daemon

1. Change to the /etc/init. d directory. cd /etc/init.d.
2. Stop the sendmail daemon if it is running. ./sendmail stop.
3. Modify /etc/default/sendmail by adding MODE=””. If the sendmail file does not exist, create the file and then add MODE=””.

Which port is used by Ssmtp?

Port 25 is the original standard SMTP port. Today, the Internet Assigned Numbers Authority (IANA), the group responsible for maintaining the internet addressing scheme, still recognizes port 25 as the standard, default SMTP port.

How to start and stop the SMTP service in Windows?

Open Services. In the details pane, right-click Simple Mail Transfer Protocol (SMTP), and then click the appropriate service state. Note: To open Services, click Start, click Control Panel, double-click Administrative Tools, and then double-click Services. Open Command Prompt.

Why do I use ssmtp on my SMTP server?

I use TLS encryption to protect my mail server sessions from eavesdropping malicious security crackers. TLS is, as I mentioned in an article about basic Web security, effectively the next version of SSL. The sSMTP tool provides functionality for using TLS/SSL to secure your connections with your SMTP server.

Where do I find the hostname for ssmtp?

The .domain part may or may not be present. On Unix and Linux systems, you can find the hostname for your computer by entering the command hostname at the shell prompt. FromLineOverride=YES: The From: header in an e-mail handled by sSMTP can be overwritten at this point.

How to overwrite the header in ssmtp e-mail?

FromLineOverride=YES: The From: header in an e-mail handled by sSMTP can be overwritten at this point. Setting this to YES just uses the From: value provided by the program that sent the e-mail to sSMTP to be forwarded to the SMTP server in the first place.