phunehehe's questions

On my mail server I have an alias from root to my email address (which is handled by the same server). I also have a content_filter that uses ${recipient}. Incoming and outgoing emails work as intended. They get filtered by the content filter with the correct recipient address.

However, when an email is sent to root from the local machine, the content filter is passed [email protected] instead of my email address. After processing the email, the filter hands it back to Postfix, then the local delivery forwards it to the right address.

How can I get the alias to be expanded before the content filter is applied?

Current setup

Here is how I currently have the content filter set up (find more details in INSTALL.md):

• In /etc/postfix/master.cf:

  gpg-mailgate    unix    -   n   n   -   -   pipe
      flags= user=nobody argv=/usr/local/bin/gpg-mailgate.py ${recipient}
  127.0.0.1:10028 inet    n   -   n   -   10  smtpd
      -o content_filter=
      -o more_options=omitted
  

• In /etc/postfix/main.cf:

  content_filter = gpg-mailgate
  alias_maps = hash:/etc/aliases
  local_recipient_maps = $alias_maps $virtual_mailbox_maps proxy:unix:passwd.byname
  

Other interesting bits

In /etc/aliases:

root: [email protected]

According to the log, the alias is only expanded in the local delivery agent:

Nov 12 10:45:22 server2 postfix/local[29745]: 0AA16792: to=<[email protected]>, relay=local, delay=0.1, delays=0.05/0.01/0/0.04, dsn=2.0.0, status=sent (forwarded as 19F20A53)

In Nginx there is try_files, a config directive that "checks for the existence of files in order, and returns the first file that is found". I find it very neat to do this

location ~* \.(gif|jpe?g|css|js)$ {
    try_files $uri 404;
}

which is a safe way of directly serving static files, without bothering the web frameworks. How can I do the same thing in Apache?

I am using Ubuntu 10.04 and by following this tutorial I have made RT run well in everything except for sending outbound emails. The difference is, I need to make RT use an external, existing mail server. The mail server is accessible via SMTP with authentication so I am looking for a place to insert the username and password, but nothing like that seems to exist.

The closest thing that I found by googling is that I need to setup ssmtp or msmtp and use it to forward my outbound emails to the mail server (sorry I lost the link). Is that true? Are there any (perhaps better) other ways?

I'm new to shell-scripting and I guess this should be something quite easy. Anyway I don't know how to force redirect a program's output to the input of another program. I know about the pipe, where you can do

program1 | program2

But in my case, I guess the output of program1 is already redirected somewhere else (this is a long script that someone else wrote). When I tried on a separate command prompt, the result is as expected, but when I put it inside the script program2 gets upset about missing parameters. Can I somehow force it?