On Thu, 29 Dec 2016 11:35:13 +0100 Marc Stürmer wrote: > Zitat von RW <rwmailli...@googlemail.com>: > > > Are there really resolvers that can't handle it? My understanding is > > that the relevant limit here is on the length of a string, 255 > > bytes. Yahoo have broken their DKIM TXT record into multiple short > > strings to keep within the limit. > > There are still enough resolvers around which cannot handle 2048bit > DKIM keys. Sad, but true. > > For example the well known registrar Hetzner from Germany cannot > handle more than 1024 bit on their DNS software - tried it myself.
That's not an example of a resolver. I can see that there might be DNS services that wont allow setting a long TXT record, but once it's set, I don't see why it would be a problem looking it up.
