Mail command

My tiny mail-command collection of the very important administrator mail command.
You can test E-Mail-Server create scripts with this useful command or send yourself some notifications.

The simplest one:

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echo Testing mail server | mail -s Test kiwi@zeldor.biz

One trick for subscriptions send mail with specific sender:

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echo subscribe | mail -s "Subscribe" flask@librelist.com -- -r "kiwi@zeldor.biz"

Test E-Mail rejection (if you don’t receive this mail your spamd ist working fine):

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echo "XJS*C4JDBQADN1.NSBN3*2IDNEN*GTUBE-STANDARD-ANTI-UBE-TEST-EMAIL*C.34X" | mail -s Your-Subject kiwi@zeldor.biz

Send file content as a body of the message (really useful solution for logs):

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mail -s "Backup failed" kiwi@zeldor.biz < backup.log

Send output of system commands:

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df -h | mail -s "HDD report" kiwi@zeldor.biz

Send E-Mail with current date:

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echo "Test: $(date)" | mail -s Test kiwi@zeldor.biz