Nagios Support Forum

I would like to add sms alert along with email alert. Is there any free sms client available?

Generally to alert by SMS you either make use of an internal out of band SMS modem, or you send your alerts to <number>@carrier.smsaddress etc, do you know your carriers address to which you would send messages so they can relay them to your mobile devices? Please reference:

http://serverfault.com/questions/164565 ... sms-alerts

I believe email to sms is applicable for linux machine:

[email protected] i.e. [email protected].

If send email to [email protected] from outlook, I am getting sms to my mobile number But if I send sms in command line ( echo “This will go” | mail -s “Hello” [email protected]), I am not receiving sms.

Do we need to have any libraries for email to sms feature?

Jan 30 13:30:35 nagios sendmail[16780]: s0U4SoFQ026298: to=<[email protected]>, ctladdr=<[email protected]> (0/0), delay=14:01:45, xdelay=00:00:00, mailer=esmtp, pri=1380525, relay=mymetropcs.nextamh.syniverse.com., dsn=4.0.0, stat=Deferred: Connection timed out with mymetropcs.nextamh.syniverse.com.

Try [email protected]

Nope. Its not working. I am able to send email only within our network/domain. Not to other email ids.

Does your server send mail through an smtp relay?
Does you server have an fqdn?

EDIT: Also, try to declare "return" (-r) (from address): Make sure both addresses exist. The sms mail relay/gateway may be bouncing your email due to the from address being invalid (like root@localhost etc).

Eventhough I specify return and sender email id, I am not getting emails....
0500

As abrist mentioned, this is likely one of a few things to do with relaying. Specifically either that your local network is not allowing the nagios machine to send out directly via smtp instead of out through your mail server. Additionally, your mail server needs to be configured to allow relaying for external domains, which absolutely is not on by default. The major difference is that when your mail client(outlook) sends mail, it is sent as your user from a trusted source, whereas when nagios sends it, your server does not know if this is spam or something else malicious that is just trying to use your systems to spam other people. My feeling is that relaying to external domains is not allowed on your mail server. This would be pretty easy to test, if nagios also cannot send to gmail\hotmail\yahoo mail, anything like that but is still trying to send via your email server, it is likely being blocked by your mail server. If it does go through, we may have something else going on that we can then look at.

sreinhardt wrote:As abrist mentioned, this is likely one of a few things to do with relaying. Specifically either that your local network is not allowing the nagios machine to send out directly via smtp instead of out through your mail server. Additionally, your mail server needs to be configured to allow relaying for external domains, which absolutely is not on by default. The major difference is that when your mail client(outlook) sends mail, it is sent as your user from a trusted source, whereas when nagios sends it, your server does not know if this is spam or something else malicious that is just trying to use your systems to spam other people. My feeling is that relaying to external domains is not allowed on your mail server. This would be pretty easy to test, if nagios also cannot send to gmail\hotmail\yahoo mail, anything like that but is still trying to send via your email server, it is likely being blocked by your mail server. If it does go through, we may have something else going on that we can then look at.

Agreed. We configured mailer daemon to send email to external domains. It is working fine now.