underscore in A or PTR records

ONRUBIA AVILES Carlos (CCS/MST) carlos.onrubia.aviles at proximus.com
Wed Feb 17 08:13:40 UTC 2021

Hello ,

I face the following problem  ==> bind do not accept an A record with underscore:

Example:     example_try   A

Same for a PTR:

Example:   PTR   example_try

Is it absolutely forbidden to have in such cases an '_'?
I know that it is possible for SRV or TXT records.

Thanks in advance to clarify the situation and sorry if this question has already be asked.


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