[clug] Pop3 mail not working after dovecot update

[Paul Wilson]

Note I found a note on the Dovecot mailing site which details this issue 
of the default for IPV6 ports for dovecot V1.1.1
but it looks like the default maybe address by the fedora packagers.
note mine came from atrpms repo
http://www.dovecot.org/list/dovecot/2008-June/031733.html

Paul

On 26/06/2008 7:23 PM, Martijn van Oosterhout wrote:
> On Wed, Jun 25, 2008 at 06:53:15PM +1000, Sam Couter wrote:
>   
>> Martijn van Oosterhout <kleptog at svana.org> wrote:
>>     
>>> That's not it. Any program opening an IPV6 socket for listening can
>>> automatically receive IPV4 connections on the same socket.
>>>       
>> ipv6(7) agrees with you, but it doesn't match my experience. I've had to
>> fix an SSH daemon to listen on IPv4 on a colleague's work machine while
>> he was at home so he could connect after it decided to listen on IPv6 only.
>>     
>
> I beleive the problem is usually that the firewall (deliberatly or not)
> blocks ipv6 packets. If you have any kind of firewall that blocks
> everything except stuff you know about, it's possible to be blocking
> ipv6 without knowing it.
>
> Here has some details:
> http://linux.yyz.us/ipv6-fc2-howto.html
>
> You have to add a rule to you ipv4 firewall to allow ipv6 packets to
> even be considered.
>
> Have a nice day,
>