<td>?</td>
<td>work in progress</td>
</tr>
- <tr>
- <td><a href="https://guilhem.org/interimap/">interimap</a></td>
- <td>yes</td>
- <td>IMAP4</td>
- <td>standard-only</td>
- <td>Fast bidirectional synchronization between IMAP servers</td>
- </tr>
<tr>
<td><a href="https://github.com/gauteh/lieer">lieer</a></td>
<td>tags: yes, mail: fetch</td>
* Postfix: [local](http://www.postfix.org/local.8.html)
* Exim: [appendfile](http://exim.org/exim-html-current/doc/html/spec_html/ch-the_appendfile_transport.html#SECTmaildirdelivery)
* Qmail: [qmail-local](http://qmail.org/man/man8/qmail-local.html)
-* OpenSMTPD: supports tuning via [.forward](https://www.opensmtpd.org/forward.5.html) files
+* OpenSMTPD: supports tuning via [.forward](https://man.openbsd.org/forward) files
Many MDAs also support filtering via [Sieve](https://en.wikipedia.org/wiki/Sieve_%28mail_filtering_language%29) language.