Problem: DKIM-TXT-Records are to long for samba or bind9

Problem

Problem: DKIM-TXT-Records are to long for samba or bind9

Solution

TXT-Records in DNS are limitted by a maximum length of 255 byte for a single string.

By nature, DKIM-Records (and also a lot of other records) can be longer than this length.
You can split these records into multiple string with a each 255-characters length:
Before:

default._domainkey.example.net in TXT v=DKIM1;p=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

After:

default._domainkey.example.net in TXT v=DKIM1;p="MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAqjLJwyc20rA5SyT5LnZKOWS6sqUanhL+4kWPzOmiVd0WhXdN5oVbmLahcOu5dY8yd4Dfp8rWxcSiz3s1E4rLnY7wU4Zhh9mSEkTgHR6z8oo7aQzI6U3Yi3djCJ9iWET9Ctk2C+80l3cnRRtoKT5QAlrnj2gPSyOdeGd+9eu6Whas7m6W6p99akBveYyuHdI+uGbqFZWD/A01pRCuSB" "DmgxlwbmTmTx4ekI8ozJV4UXkaxtyplMWnP4/6qMq7FxVxp/2n86Lmn6dIUNv4f3+k9UEsaaMNd8ubT+uq1dtgQWIHjDo7qVHU08XYFD0+c7nC9QFxGTUqbkBH/HRJi+PpgWMpj+WMYf8KAkwYMHwkqVqenPAQidp9iy2zT7A+PdokowysX+6OVoN2oJb8WAP1zNTeLFPBfuOofwLPpY6okzD2vfKudQJRllJc1cd2u7g1I1M3MNT+UwoKW1DY" "EcX9tqRv7Kt2IwmDSMEIY0N1EX2L+SdP4Bv0nCsC68UxNEx3kHQ9lOhIkSMyayuOrjdtV1XAsNQhRwD+0xkprPL7VFA8cm/ptONJPByWeUGMg26YADw/kNrIRK4TykEAKqKafQxNA+uQVrpYzh3vH3O45smhYHPw7snV5QB1yQHdSBdWWnFXfrM0mWw3cpdH80EQalxqqH+OOvjJjEdKN3T+A1kCAwEAAQ=="