[exim-dev] [Bug 1644] New: problem with parsing colons in IP…

https://bugs.exim.org/show_bug.cgi?id=1644

            Bug ID: 1644
           Summary: problem with parsing colons in IPv6 addresses
           Product: Exim
           Version: 4.83
          Hardware: x86
                OS: All
            Status: NEW
          Severity: bug
          Priority: medium
         Component: General execution
          Assignee: nigel@???
          Reporter: talat@???
                CC: exim-dev@???

I used/modified the instructions at the following forum in order to set the
smtp_banner and helo_data per virtual smtp server rather than get it from
/etc/hostname for all virtual smtp servers that operate on multiple IP
addresses on a single server:

http://forum.directadmin.com/showthread.php?t=50399

Interestingly, this only works for IPv4 and not IPv6. The reason is that the
format of IPv6 addresses contains colons that conflict with the required
syntax:

IPv4 works, e.g.
x.x.x.x: example.com
example.com: x.x.x.x

IPv6 doesn't work, e.g.
2001:xxxx:xx:xxx::114: example.com
example.com: 2001:xxxx:xx:xxx::114

If this functionality is going to be used with IPv6, it's going to need some
way to work around the problem, it seems. Any solutions for this?

Thanks!

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