Plant a handy Fake SMTP?

Question

htaccess

Prompt for a convenient console Fake SMTP to store letters.
No extra settings. Under Linux.
greenmail didn't find it to save to files
Looked at DevNullSmtp - almost, but too primitive, no configuration. I would like the possibility of a simple filter, for example, search by text with the ability to either name files or sort them into folders.
Ideally, in general, the execution of a small script for each received letter.

Answer 1

RewriteCond %{QUERY_STRING} (^|&)number\=(.+)($|&)
RewriteRule ^news\.php$ /news%2/? [L,R=301]

where
(^|&)...... ($|&) - there may be more than one get request, for this we use this construction, or ? or &
%{QUERY_STRING}- is not part of the url and stands out just like that
%2- an analogue of $2 if I needed the second bracket from the rudder, and %2 takes the second bracket from the conda.
/?- removes get parameters
(.+)- 1 or more characters in a group

Answer 2

RewriteCond %{QUERY_STRING} ^number=(\d+)
RewriteRule ^(news)\.php$ https://www.site.ru/$1%1/? [R=301,L]

Or

RewriteCond %{THE_REQUEST} " /(news)\.php\?number=(\d+)"
RewriteRule ^ https://www.site.ru/%1%2/? [R=301,L]

Answer 3

At one time I used this thing: SMTPeshka .
has a web face, saves letters in JSON format to disk.