gmail.com - 550 error for ipv6/PTR ?

Owen DeLong owen at delong.com
Wed Jan 15 23:20:54 UTC 2014


> 
> 
> Ah yes, the confusion with the separator between IP and ports.
> 
> IPv4:port
> IPv6.port
> 
> That gets a lot of regex confused...

Especially since IPv4:port works, while IPv6:port usually does not and you usually need [ipv6]:port.

Owen





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