Re: [maildropl] Send separate notification to $LOGNAME during maildrop execution

[Sam V. <mr...@co...>]

email builder writes:

> Hello,
>
> I want to send a notification to the recipient ($LOGNAME) under certain  
> conditions.  This is in addition to normal message delivery.
>
> A couple issues arise:
>
> 1) This creates a mail loop.  To prevent this, we currently create a file in  
> the home directory whose presence indicates that the notification was sent  
> and doesn't need to be re-sent.  This works fine, but I'd like to know if  
> there is a better way to handle this.

Add a custom header to the notification mail. That tells you it's a  
notification mail.

But why even send the mail in the first place, when you have the mailbox  
right there. Just assemble your message, and deliver it directly to the  
mailbox.


>
> 2) What's the best way to create and send a separate email inside of  
> maildrop?  We considered mailbot, which has options we could use to override  
> the recipient address, but using an autoresponse tool for this seems  
> inappropriate.  Currently, we have a slightly awkward sendmail execution:
>
> /^Delivered-To:\s+.*?@(.*)/:h
> DOMAIN="$MATCH1"
> cc "| (echo 'Subject: Hello World'; echo 'X-Priority: 1 (Highest)'; echo  
> 'To: $LOGNAME'; echo ''; echo 'This is the notification email body.'; echo  
> 'Each line of the body is in a separate echo statement.';) | $SENDMAIL -t -F  
> Postmaster -f postmaster@$DOMAIN -r postmaster@$DOMAIN $LOGNAME"
>
> 3) As you can see above, we are trying to determine the domain dynamically.   
> Is parsing the Delivered-To header reliable?  Is there a preferred way to  
> handle that?

Your mail server may provide the recipient's address in an environment  
variable.