- Ubuntu 14.04 on a virtual machine that is not my PC. I use my PC (Windows 7 and Putty 0.63) to shell into it.
- Uname=Linux ubuntucomp 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
- This machine is on our private network and does not have an official registered domain name. It has it's own IP but I think it's an internal IP. This machine is not accessed from outside our network, I only use it to send outgoing emails to people in our company. I got Perl to send an email out to our SMTP provider and that works fine.
- We pay for an external SMTP service, so that part is done. The only SMTP authentication I use is a username and password. SSL is not needed.
- I have no intention of receiving any email from the outside world on this machine.
- Right now my emails are being blocked by my SMTP provider, possibly because I don't have a FQDN. The error I get is "connection timed out".
- I can't even telnet from my PC to the SMTP server, I also get a "timeout" error. I used Putty 0.63. Yet I can still send email via a Perl program on Ubuntu.
- IT cannot help me so I'm on my own. I'm new to sysadmin for Ubuntu.
I need a way to send emails with an attachment via the command line (for an automated cron process) without setting up a registered domain, MX or A record. What are my options? Postfix won't do this as it requires a bunch of network settings set up along with a (DNS?) record.
Since the Perl module uses the SMTP protocol to directly log into the SMTP server, I suspect I need an Ubuntu package that does the same, without passing the task onto another MTA.
I tried SSMTP
- Using ssmtp I got this error from /var/log/mail.log: Oct 22 10:18:19 ubuntucomp sSMTP: Unable to connect to "smtpout.payserv.net" port 587. Process failed with error code 1. Oct 22 10:18:19 ubuntucomp sSMTP: Cannot open smtpout.payserv.net:587
- In /etc/ssmtp/ssmtp.conf I even changed the setting "Rewritedomain" to be our actual company domain name.
- And how do I restart the SSMTP daemon after I make changes to the ssmtp.conf file? Perhaps that's part of the problem.
I tried telnetting into the SMTP server
- I tried telnetting into smtpout.payserv.net port 25 and just got "220 *******************", then Putty 0.63 quit.
Is it possible my SMTP company has blocked my IP? Should I just call them?
Let's back up a bit
- I did 'netstat -an|grep smtp' and did not see an smtp service running. How do I start it?
- Do I need to add the smtp server to /etc/hosts?