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--- doc:appunti:linux:sa:sieve_filtering_tnef [2021/05/24 12:46] – [Installing the tnef-filter script] niccolo
+++ doc:appunti:linux:sa:sieve_filtering_tnef [2021/05/24 12:54] – [Installing the tnef-filter script] niccolo
@@ Line 6: / Line 6: @@
 The original TNEF attachment is retained, so **the size of the email is roughly doubled**.
+===== Reference installation =====
+I'm running a mail server based on **Debian 10 Buster**, the IMAP, POP3 and LDA services are provided by **Dovecot**. The Local Delivery Agent have the **Sieve** filtering enabled. You can read the configuration details in this article: **[[postfix_spamassassin_clamav_dovecot#sieve_filtering|Sieve filtering with Dovecot]]**.
 ===== Installing the tnef-filter script =====
-First of all we need a mail filter program which does all the magic.
+First of all we need a mail filter program which does all the magic. It will receive the mail message as standard input and it will produce the //converted// message to the standard output.
-You can download a **tnef-filter** script provided by **Graham Edgecombe**, from his **[[https://github.com/grahamedgecombe/tnef-filter|GitHub repository]]**. On my Debian 10 Buster installation, that requied the following libraries:
+You can download the **tnef-filter** script written by **Graham Edgecombe**, from his **[[https://github.com/grahamedgecombe/tnef-filter|GitHub repository]]**. I copied the binary script into **/usr/local/bin/tnef-filter**.
+Running the script on my Debian 10 Buster server, requied the following libraries:
 <code>
 apt-get install libconvert-tnef-perl libfile-mmagic-perl libmime-tools-perl
 </code>
-I copied the binary script into **/usr/local/bin/tnef-filter**.
 ===== The Sieve filter =====