Bug#244724: exim4: more of documentation updates

[Marc Haber]

On Sat, Nov 04, 2006 at 09:56:43PM +0900, Osamu Aoki wrote:
> If you dare, some IPv6 example may be the thing but I doubt it is used
> as much yet.

.I dc_smarthost
List of hosts to which all outgoing mail is passed to and that takes care
of delivering it. Multiple hosts are semicolon separated. Each of the
hosts is tried, in the order specified (See exim specification,
chapter 20.5). All deliveries go out to TCP port 25 unless a different
port is specified after the host name, separated from the host name by
two colons. Colons in IPv6 addresses need to be doubled. If a port
number follows, IP addresses may be enclosed in brackets, which might
be the only possibility to specify delivery to an  IPv6 address and a
different port. Examples:
.br
.BR host.domain.example
deliver to host looked up on DNS, tcp/25
.br
.BR host.domain.example::587
deliver to host looked up on DNS, tcp/587
.br
.BR 192.168.2.4
deliver to IPv4 host, tcp/25
.br
.BR 192.168.2.4::587
deliver to IPv4 host, tcp/587
.br
.BR [192.168.2.4]::587
deliver to IPv4 host, tcp/587
.br
.BR 2001::0db8::f::4::::2
deliver to IPv6 host, tcp/25
.br
.BR [2001::0db8::f::4::::2]::587
deliver to IPv6 host, tcp/587
.br
This is used as value of the DCsmarthost macro.

Is this acceptable? Or did I miss examples?

Greetings
Marc

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