SMTP-dump

Listens for SMTP connections, accepts them, and writes any emails that come through them into an inbox on the filesystem.

There are 3 uses that I know of for this:

• You are writing a small application that needs to receive some emails and it is inconvienient to run an SMTP server and much easier to just read emails from the filesystem
• You are doing spam research
• You want to see if your machine has a public IP without a firewall, because within 24 hours someone will send spam via you

Install:

cargo install smtp-dump

Run as daemon:

date >> logs; bash -c 'setsid smtp-dump </dev/null &>>logs & jobs -p %1'

Check daemon:

lsof logs
lsof -i tcp:25

Stop daemon:

killall smtp-dump

Restart:

killall smtp-dump; date >> logs; bash -c 'setsid smtp-dump </dev/null &>>logs & jobs -p %1'