add notion to bsd-mailx

content/blog/email-debian.md

@@ -9,7 +9,7 @@ Email offers a simple and reliable method for machine-user communication. [msmtp
 
 ## install
 
-- `apt install msmtp msmtp-mta`
+- `apt install msmtp msmtp-mta bsd-mailx`
 
 ## configure
 
@@ -36,6 +36,15 @@ password SECRET
 account default: exampleaccount
 ```
 
+For allowing mail to bve send with standard `mail` command you need to append
+
+`set mta=/usr/bin/msmtp`
+
+to
+
+`/etc/mail.rc`
+
 ## more details
 - https://wiki.debian.org/msmtp
 - https://marlam.de/msmtp/
+- https://unix.stackexchange.com/a/643516