Get an email whenever a tweet with a certain hashtag or mention is published.
If you want to get email updates for some hashtag or mention, simply send an email to email@example.com with the hashtag (including #) or mention (including @) in the subject field. If the subscription was successful, you will receive a confirmation email.
If you no longer want to receive email updates, you can unsubscribe in a similar fasion: send an email to firstname.lastname@example.org. Supplying the hashtag or mention in the subject field is optional. If you do not supply any, all your subscriptions will be removed.
This installation guide is intended for Ubuntu and postfix. If you are using another MTA, you will have to figure out how to install this yourself. Installation is not that difficult ;)
First, lets make sure all the requirements are satisfied.
apt-get install postfix redis-server nodejs
Now, let's install the source files
mkdir -p /path/to/target/location && cd /path/to/target/location npm install twailer
Next, we need to configure postfix. First, we need a new transport method. In
twailer unix - n n - - pipe flags=FR user=twailer argv=/path/to/twailer/bin/twailer
Because your node installation may be different from mine, you might need to change the shebang.
You could use
/usr/bin/env node but then you will need to configure postfix to pass the
We want emails sent to
(un)?email@example.com delivered on this machine, so we need to add a
mailbox domain in
virtual_mailbox_domains = domain.tld [other domains]
We don't want to receive these mails in an inbox, we want them delivered to our new transport. In
main.cf, configure the location for the transport map.
transport_maps = hash:/etc/postfix/transport
/etc/postfix/transport, add the following lines:
firstname.lastname@example.org twailer: email@example.com twailer:
Finally, we need to reload postfix. Don't forget to convert the transport map to Berkeley DB with
postmap /etc/postfix/transport postfix reload
You're all set! You can now process incoming subscription mails.
To use the application, start the twailer process.
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