docs: add all untracked content

Mail.md

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+---
+title: Mail
+description: Overview of mail settings, and sending system mail.
+published: true
+date: 2022-04-30T20:10:37.995Z
+tags: config, mail
+editor: markdown
+dateCreated: 2021-08-27T14:00:37.062Z
+---
+
+# Mail	
+A bunch of stuff still use mail unfortunately.
+
+Below are the deets on how to point Containers to the SMTP mailbox I set up, and how to send system mail.
+
+## Container mail via SMTP
+
+Use the following credentials:
+```yml
+host: smtp.mail.yahoo.com
+port: 587
+username: "pukekoxyz"
+password: "pvefngmuhcxunzqs"
+sender: pukekoxyz@yahoo.com
+```
+`takahe@pukeko.xyz` may also work as I've set up a relay - not tested.
+`matan@pukeko.xyz` point to my ProtonMail address - similarly untested.
+
+## System mail via `sendmail`
+Gentoo mailing is... weird. Postfix works as is (see [here](https://wiki.gentoo.org/wiki/Postfix)), but `mailx` appears not to, sticking us with `sendmail`.
+
+To send an acceptable (not pretty - acceptable) mail run:
+`echo "Subject: [subject]" | sendmail -F "Takahe" -f "takahe@pukeko.xyz" -t matanhorovitz@protonmail.com <<< $([message-body])`
+> Example: Tacocat!
+`echo "Subject: tacocat" | sendmail -F "Takahe" -f "takahe@pukeko.xyz" -t matanhorovitz@protonmail.com <<< $(echo tacocat)`
+{.is-info}
+
+So long as it works, right?
+
+## Nextcloud mail
+Nextcloud requires STARTTLS on port 25 - see this example:
+![nextcloud_mail.png](/nextcloud_mail.png)