Solved Zabbix - email alerts
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Here you go...
[root@zabbix ~]# cat /etc/redhat-release CentOS Linux release 7.3.1611 (Core) -
Just for reference, the system is running postfix, not sendmail.
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What settings are you using for SMTP and Office365?
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@Mike-Davis I think I gave up trying to get the mail.protection thingy to work and ended up just using a mail box with port 587 and STARTTLS
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@hobbit666 said in Zabbix - email alerts:
I think I gave up trying to get the mail.protection thingy to work and ended up just using a mail box with port 587 and STARTTLS
So install ssmpt and mailx and go about it that way? I could try that with a gmail account and see if I get anything that way.
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@Mike-Davis said in Zabbix - email alerts:
@hobbit666 said in Zabbix - email alerts:
I think I gave up trying to get the mail.protection thingy to work and ended up just using a mail box with port 587 and STARTTLS
So install ssmpt and mailx and go about it that way? I could try that with a gmail account and see if I get anything that way.
Are you sure that that is needed? Does it even use Postfix? Have you tested it without that?
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@Mike-Davis said in Zabbix - email alerts:
So install ssmpt and mailx and go about it that way?
mailx is a client app, not used for applications to send mail. That's just for you to send them by hand.
Do you have reason to believe that postfix doesn't have TLS capability by default? This is an enterprise OS here. Our matching system didn't need anything special to handle TLS to O365, right?
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Postfix can most certainly use TLS.
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@scottalanmiller said in Zabbix - email alerts:
Do the logs tell you anything?
I looked at the /var/log/zabbix/zabbix_server.log and didn't see anything related to email. What are the names of the other log files I should look at?
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@Mike-Davis said in Zabbix - email alerts:
@scottalanmiller said in Zabbix - email alerts:
Do the logs tell you anything?
I looked at the /var/log/zabbix/zabbix_server.log and didn't see anything related to email. What are the names of the other log files I should look at?
Well normally /var/log/maillog, but it is completely empty prompting me to think that postfix is not being asked to send anything.
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@Mike-Davis said in Zabbix - email alerts:
@scottalanmiller said in Zabbix - email alerts:
Do the logs tell you anything?
I looked at the /var/log/zabbix/zabbix_server.log and didn't see anything related to email. What are the names of the other log files I should look at?
/var/log/maillog -
@scottalanmiller said in Zabbix - email alerts:
Our matching system didn't need anything special to handle TLS to O365, right?
right, that's why I set up the connector in o365. So I could send mail in on port 25 without authentication.
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@Mike-Davis said in Zabbix - email alerts:
@JaredBusch said in Zabbix - email alerts:
/var/log/maillog
is empty.
Then it is not using
postfix -
@scottalanmiller said in Zabbix - email alerts:
So install ssmpt and mailx and go about it that way? I could try that with a gmail account and see if I get anything that way.
Are you sure that that is needed?
Not sure it's needed. I was looking at this guide:
http://www.tecmint.com/configure-zabbix-to-send-email-alerts-to-gmail/ -
@Mike-Davis said in Zabbix - email alerts:
@scottalanmiller said in Zabbix - email alerts:
Our matching system didn't need anything special to handle TLS to O365, right?
right, that's why I set up the connector in o365. So I could send mail in on port 25 without authentication.
I'm confused. Doesn't that mean the opposite of what I said?
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@Mike-Davis said in Zabbix - email alerts:
@JaredBusch said in Zabbix - email alerts:
/var/log/maillog
is empty.
That's what I said
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@Mike-Davis said in Zabbix - email alerts:
@scottalanmiller said in Zabbix - email alerts:
So install ssmpt and mailx and go about it that way? I could try that with a gmail account and see if I get anything that way.
Are you sure that that is needed?
Not sure it's needed. I was looking at this guide:
http://www.tecmint.com/configure-zabbix-to-send-email-alerts-to-gmail/Why? It's purpose is expressly to do something different from what we have today: "This tutorial will briefly discuss you on how to setup Zabbix server to send mail reports to a Gmail address by using SSMTP program, without the need to install and configure any local MTA daemon, such as Postfix, Exim etc."
We already have Postfix installed, running and you said that you tested it and it worked.
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Let's stick to testing one thing at a time. Don't hit one hiccup and start ripping and replacing the entire email system. Chances are we are dealing with something really simple, like Zabbix isn't trying to send email or isn't trying to use the MTA. If we have to put SMTP details into Zabbix, it seems like it is trying to send directly without Postfix, otherwise it would use the Postfix settings, right?
