Wu-IMAP IPv6 configuration guide
Which version of Wu-IMAP daemon supports IPv6?
Wu-IMAP started to support IPv6 in version imap-2004. However IPv6 support is disabled by default at compilation time.
How can I compile Wu-IMAP with IPv6 support enabled?
In the Makefile of the source code of Wu-IMAP change the line
and then compile the source code.