Shell Send an email from sh(1) via SMTP

[unitrunker]

I'm playing with mailpit and need something quick and easy to send test emails to port 1025 on localhost.

I tried mutt but that goes to a local mailbox. Just looking for ideas.

 

[rmomota]

You need a mail server, try postfix.

 

[unitrunker]

You need a mail server, try postfix.

I must not be clear. mailpit speaks SMTP by listening on port 1025. I need something simple to throw emails at it so I can play with the feaures provided by mailpit.

https://mailpit.axllent.org/

I do NOT want to set up sendmail or postfix.

 

[balanga]

how about mail()...

 

[unitrunker]

how about mail()...

I suspect I've not made my question clear.

balanga How to type out 'mail' at a shell prompt so that it hits localhost port 1025 speaking SMTP?

I'm not trying to drop messages into a local mailbox folder. mail and mutt can certainly do that.

 

[Charlie_]

If you're using emacs

(setq send-mail-function #'smtpmail-send-it)
(setq smtpmail-smtp-server "localhost")
(setq smtpmail-smtp-service 1025)

M-x mail

From: ab
To: cd
Subject: ef
--text follows this line--
gh

M-x mail-send-and-exit

 

[unitrunker]

I found how to point dma to an external SMTP server (which happens to be localhost in this case). I honestly thought dma ran as a daemon. It only runs when there is mail to deliver. Sending to an external address causes dma to forward to the server in /etc/dma/dma.conf. This did not even require an /etc/dma/auth.conf file.

Two lines edited in /etc/dma/dma.conf:
SMARTHOST localhost
PORT 1025

NOW I can send mail to mailpit using mutt or mail and view the results in a browser on http://localhost:8025/

FreshPorts -- mail/mailpit: Mailpit development mail server

Mailpit is a multi-platform email testing tool & API for developers. It acts as both an SMTP server, and provides a web interface to view all captured emails.

www.freshports.org

 

[VladiBG]

Use telnet

 

[cy@]

I'm playing with mailpit and need something quick and easy to send test emails to port 1025 on localhost.

I tried mutt but that goes to a local mailbox. Just looking for ideas.

Some MUAs send mail by piping to sendmail, similar to, some_app | sendmail -Bs. Others drop email to some server : port, such as claws-mail. It depends on what you might wan to do.

If you want to really get into the weeds you nc (netcat) or telnet to port 1025 and type in the the SMTP commands yourself. Or write a shell script to do this for you. Better yet, Perl and python supply modules that do this for you, allowing you to script to your hearts content.

Personally, I'd opt to use some Perl or python module. Done that before.

Not only that, once you get the hang of using python modules -- I recommend python over perl, perl is antiquated and quirky -- you'll start using the REST API module to interface with websites. I and my team just built a REST API interface between Ansible Automation Platform and ServiceNow. It's an exciting new world of modules and APIs out there.

If perl or python aren't your thing, you could use the ansble mail module. Used that too. It works quite well.

If you're testing, do it properly and write a script to perform the test for you. It's reproducible and so much quicker to run when you need to. There are a lot of ways to script this.

 

[unitrunker]

Thanks cy@ and VladiBG. Ages ago, I did the telnet to SMTP more than once - before STARTTLS was common.

 

[covacat]

you can still do it
openssl s_client -starttls smtp -crlf -connect hostort

 

[gpw928]

Personally, I'd opt to use some Perl or python module. Done that before.

I think that's the least grief, least effort method.

 

[hruodr]

Perhaps you can use this instead of telnet, openssl or sendmail as client:

msmtp - about