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+_**This list is currently under heavy development. I will update very soon!**_
+
+Some Domains are not working with Mail-in-a-Box's Standard Setup. This is because some TLD registrie check, whether the two demanded nameservers have different IPs at different locations. This is not provided in Mail-in-a-Box. For that reason, you may have trouble to setup Mail-in-a-Box with the following TLDs:
+
+* 
+
+The following TLD's should work fine (but are not tested yet):
+
+* .academy (2 Nameservers; No Nameserver-Check; IPv6; IDN; DNSSec)
+* .accountant (2 Nameservers; No Nameserver-Check; IPv6; IDN; DNSSec)
+* .accountants (2 Nameservers; No Nameserver-Check; IPv6; IDN; DNSSec)
+* .actor (2 Nameservers; No Nameserver-Check; IPv6; IDN; DNSSec)
+* .adult (2 Nameservers; No Nameserver-Check; IPv6; IDN; DNSSec)
+* .ae.org (2 Nameservers; No Nameserver-Check; IPv6; IDN; DNSSec)
+
+
+
+The following TLD's have some Problems (no IPv6 Support or missing DNSSec). However - you can give them a try:
+
+* .aaa.pro (2 Nameservers; No Nameserver-Check; No IPv6; No IDN; No DNSSec)
+* .ac (2 Nameservers; No Nameserver-Check; No IPv6; IDN; No DNSSec)
+* .ac.im (2 Nameservers; No Nameserver-Check; No IPv6; No IDN; No DNSSec)
+* .ac.mu (1 Nameserver; No Nameserver-Check; IPv6; No IDN; No DNSSec)
+* .aca.pro (2 Nameservers; No Nameserver-Check; No IPv6; No IDN; No DNSSec)
+* .acct.pro (2 Nameservers; No Nameserver-Check; No IPv6; No IDN; No DNSSec)
+* .aero (2 Nameservers; No Nameserver-Check; IPv6; No IDN; No DNSSec)
+* .af (2 Nameservers; No Nameserver-Check; No IPv6; No IDN; No DNSSec)
+* .ag (0 Nameservers; No Nameserver-Check; No IPv6; No IDN; No DNSSec)
+
+Problems by finding out Information:
+
+*.adult.ht