Where does crontab get the email address of the user it emails / where are user email addresses set?
Clash Royale CLAN TAG#URR8PPP
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I am trying to familiarize myself with crontab. I know that it is supposed to send an email containing the output of jobs to the user that scheduled them however, I can see in the syslog that the address crontab is sending emails to is not a "local" one (as if I were to type mail -s "email here" username) but an external email address (like user@example.com).
Can someone tell me from where this email is derived and how I can set the users' email address to something else?
This could be because I have a top-level domain associated with my instance (I can see in the log the emails are being sent there), however, I actually have two domain names pointed to this server so I don't know how crontab is choosing or what would happen if there were no domain on this machine.
In short I am just trying to figure out where this default email address is set.
cron email
edited Aug 17 '16 at 21:46
Gilles
510k12010081537
asked Aug 17 '16 at 4:33
Startec
2671418
add a comment |Â
up vote
1
down vote
favorite
I am trying to familiarize myself with crontab. I know that it is supposed to send an email containing the output of jobs to the user that scheduled them however, I can see in the syslog that the address crontab is sending emails to is not a "local" one (as if I were to type mail -s "email here" username) but an external email address (like user@example.com).
Can someone tell me from where this email is derived and how I can set the users' email address to something else?
This could be because I have a top-level domain associated with my instance (I can see in the log the emails are being sent there), however, I actually have two domain names pointed to this server so I don't know how crontab is choosing or what would happen if there were no domain on this machine.
In short I am just trying to figure out where this default email address is set.
cron email
edited Aug 17 '16 at 21:46
Gilles
510k12010081537
asked Aug 17 '16 at 4:33
Startec
2671418
On what operating system? The capabilities to send emails to non-local users depends on the cron implementation. And what MTA (mail server software, e.g. postfix, exim, etc.) are you using? It may be the MTA that's doing the rewriting.
– Gilles
Aug 17 '16 at 21:47
This is for Ubuntu Linux. What is strange to me is that, until I installedmailutils, I could not even use themailprogram, therefore I do not know howcronwould have sent an email (even to local users).
– Startec
Aug 18 '16 at 5:05
add a comment |Â
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I am trying to familiarize myself with crontab. I know that it is supposed to send an email containing the output of jobs to the user that scheduled them however, I can see in the syslog that the address crontab is sending emails to is not a "local" one (as if I were to type mail -s "email here" username) but an external email address (like user@example.com).
Can someone tell me from where this email is derived and how I can set the users' email address to something else?
This could be because I have a top-level domain associated with my instance (I can see in the log the emails are being sent there), however, I actually have two domain names pointed to this server so I don't know how crontab is choosing or what would happen if there were no domain on this machine.
In short I am just trying to figure out where this default email address is set.
cron email
edited Aug 17 '16 at 21:46
Gilles
510k12010081537
asked Aug 17 '16 at 4:33
Startec
2671418
I am trying to familiarize myself with crontab. I know that it is supposed to send an email containing the output of jobs to the user that scheduled them however, I can see in the syslog that the address crontab is sending emails to is not a "local" one (as if I were to type mail -s "email here" username) but an external email address (like user@example.com).
Can someone tell me from where this email is derived and how I can set the users' email address to something else?
This could be because I have a top-level domain associated with my instance (I can see in the log the emails are being sent there), however, I actually have two domain names pointed to this server so I don't know how crontab is choosing or what would happen if there were no domain on this machine.
In short I am just trying to figure out where this default email address is set.
cron email
cron email
edited Aug 17 '16 at 21:46
Gilles
510k12010081537
asked Aug 17 '16 at 4:33
Startec
2671418
edited Aug 17 '16 at 21:46
Gilles
510k12010081537
asked Aug 17 '16 at 4:33
Startec
2671418
edited Aug 17 '16 at 21:46
Gilles
510k12010081537
edited Aug 17 '16 at 21:46
Gilles
510k12010081537
edited Aug 17 '16 at 21:46
Gilles
510k12010081537
510k12010081537
asked Aug 17 '16 at 4:33
Startec
2671418
asked Aug 17 '16 at 4:33
Startec
2671418
asked Aug 17 '16 at 4:33
Startec
2671418
2671418
On what operating system? The capabilities to send emails to non-local users depends on the cron implementation. And what MTA (mail server software, e.g. postfix, exim, etc.) are you using? It may be the MTA that's doing the rewriting.
– Gilles
Aug 17 '16 at 21:47
This is for Ubuntu Linux. What is strange to me is that, until I installedmailutils, I could not even use themailprogram, therefore I do not know howcronwould have sent an email (even to local users).
– Startec
Aug 18 '16 at 5:05
add a comment |Â
On what operating system? The capabilities to send emails to non-local users depends on the cron implementation. And what MTA (mail server software, e.g. postfix, exim, etc.) are you using? It may be the MTA that's doing the rewriting.
– Gilles
Aug 17 '16 at 21:47
This is for Ubuntu Linux. What is strange to me is that, until I installedmailutils, I could not even use themailprogram, therefore I do not know howcronwould have sent an email (even to local users).
– Startec
Aug 18 '16 at 5:05
On what operating system? The capabilities to send emails to non-local users depends on the cron implementation. And what MTA (mail server software, e.g. postfix, exim, etc.) are you using? It may be the MTA that's doing the rewriting.
– Gilles
Aug 17 '16 at 21:47
On what operating system? The capabilities to send emails to non-local users depends on the cron implementation. And what MTA (mail server software, e.g. postfix, exim, etc.) are you using? It may be the MTA that's doing the rewriting.
– Gilles
Aug 17 '16 at 21:47
This is for Ubuntu Linux. What is strange to me is that, until I installed
mailutils, I could not even use the mail program, therefore I do not know how cron would have sent an email (even to local users).– Startec
Aug 18 '16 at 5:05
This is for Ubuntu Linux. What is strange to me is that, until I installed
mailutils, I could not even use the mail program, therefore I do not know how cron would have sent an email (even to local users).– Startec
Aug 18 '16 at 5:05
add a comment |Â
1 Answer
1
active
oldest
votes
up vote
1
down vote
man 5 crontab
If MAILTO is defined (and non-empty), mail is sent
to the user so named. MAILTO may also be used to direct mail to multiâ€Â
ple recipients by separating recipient users with a comma.
answered Aug 17 '16 at 4:38
Ipor Sircer
9,3161920
1
Good find! Unfortunately this does not explain where mail is sent if MAILTO is not defined and does not answer my question.
– Startec
Aug 17 '16 at 4:43
user@cat /etc/mailnameor how you configured your mta. it's not crontab's job to choose address, it always addresses the local user.
– Ipor Sircer
Aug 17 '16 at 4:47
Ah, there is the answer I am looking for. So it appends the users' name onto how the mta was configured. I see, thank you.
– Startec
Aug 17 '16 at 4:50
add a comment |Â
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
1
down vote
man 5 crontab
If MAILTO is defined (and non-empty), mail is sent
to the user so named. MAILTO may also be used to direct mail to multiâ€Â
ple recipients by separating recipient users with a comma.
answered Aug 17 '16 at 4:38
Ipor Sircer
9,3161920
1
Good find! Unfortunately this does not explain where mail is sent if MAILTO is not defined and does not answer my question.
– Startec
Aug 17 '16 at 4:43
user@cat /etc/mailnameor how you configured your mta. it's not crontab's job to choose address, it always addresses the local user.
– Ipor Sircer
Aug 17 '16 at 4:47
Ah, there is the answer I am looking for. So it appends the users' name onto how the mta was configured. I see, thank you.
– Startec
Aug 17 '16 at 4:50
add a comment |Â
up vote
1
down vote
man 5 crontab
If MAILTO is defined (and non-empty), mail is sent
to the user so named. MAILTO may also be used to direct mail to multiâ€Â
ple recipients by separating recipient users with a comma.
answered Aug 17 '16 at 4:38
Ipor Sircer
9,3161920
1
Good find! Unfortunately this does not explain where mail is sent if MAILTO is not defined and does not answer my question.
– Startec
Aug 17 '16 at 4:43
user@cat /etc/mailnameor how you configured your mta. it's not crontab's job to choose address, it always addresses the local user.
– Ipor Sircer
Aug 17 '16 at 4:47
Ah, there is the answer I am looking for. So it appends the users' name onto how the mta was configured. I see, thank you.
– Startec
Aug 17 '16 at 4:50
add a comment |Â
up vote
1
down vote
up vote
1
down vote
man 5 crontab
If MAILTO is defined (and non-empty), mail is sent
to the user so named. MAILTO may also be used to direct mail to multiâ€Â
ple recipients by separating recipient users with a comma.
answered Aug 17 '16 at 4:38
Ipor Sircer
9,3161920
man 5 crontab
If MAILTO is defined (and non-empty), mail is sent
to the user so named. MAILTO may also be used to direct mail to multiâ€Â
ple recipients by separating recipient users with a comma.
answered Aug 17 '16 at 4:38
Ipor Sircer
9,3161920
answered Aug 17 '16 at 4:38
Ipor Sircer
9,3161920
answered Aug 17 '16 at 4:38
Ipor Sircer
9,3161920
answered Aug 17 '16 at 4:38
Ipor Sircer
9,3161920
9,3161920
1
Good find! Unfortunately this does not explain where mail is sent if MAILTO is not defined and does not answer my question.
– Startec
Aug 17 '16 at 4:43
user@cat /etc/mailnameor how you configured your mta. it's not crontab's job to choose address, it always addresses the local user.
– Ipor Sircer
Aug 17 '16 at 4:47
Ah, there is the answer I am looking for. So it appends the users' name onto how the mta was configured. I see, thank you.
– Startec
Aug 17 '16 at 4:50
add a comment |Â
1
Good find! Unfortunately this does not explain where mail is sent if MAILTO is not defined and does not answer my question.
– Startec
Aug 17 '16 at 4:43
user@cat /etc/mailnameor how you configured your mta. it's not crontab's job to choose address, it always addresses the local user.
– Ipor Sircer
Aug 17 '16 at 4:47
Ah, there is the answer I am looking for. So it appends the users' name onto how the mta was configured. I see, thank you.
– Startec
Aug 17 '16 at 4:50
1
1
Good find! Unfortunately this does not explain where mail is sent if MAILTO is not defined and does not answer my question.
– Startec
Aug 17 '16 at 4:43
Good find! Unfortunately this does not explain where mail is sent if MAILTO is not defined and does not answer my question.
– Startec
Aug 17 '16 at 4:43
user@
cat /etc/mailname or how you configured your mta. it's not crontab's job to choose address, it always addresses the local user.– Ipor Sircer
Aug 17 '16 at 4:47
user@
cat /etc/mailname or how you configured your mta. it's not crontab's job to choose address, it always addresses the local user.– Ipor Sircer
Aug 17 '16 at 4:47
Ah, there is the answer I am looking for. So it appends the users' name onto how the mta was configured. I see, thank you.
– Startec
Aug 17 '16 at 4:50
Ah, there is the answer I am looking for. So it appends the users' name onto how the mta was configured. I see, thank you.
– Startec
Aug 17 '16 at 4:50
add a comment |Â
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On what operating system? The capabilities to send emails to non-local users depends on the cron implementation. And what MTA (mail server software, e.g. postfix, exim, etc.) are you using? It may be the MTA that's doing the rewriting.
– Gilles
Aug 17 '16 at 21:47
This is for Ubuntu Linux. What is strange to me is that, until I installed
mailutils, I could not even use themailprogram, therefore I do not know howcronwould have sent an email (even to local users).– Startec
Aug 18 '16 at 5:05