dkim signature not present or bad format

I’m going mad with dkim-filter + postfix. My message are signed but Gmail notify me errors like "dkim=neutral(no signature)" or "dkim=neutral(bad format)"

I don’t know what is wrong. I’ve generated public and private key, and I’m using the right selector. My dns entry looks like that:

default._domainkey.accessdev-mail.com.       IN TXT   "v=DKIM1; g=*; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDaSlf0l7scGWVaOlPlPX4C8Mce
v3C7QpDBdwcJ+rw36GVlcJaJ2QU2yfh/VXr81DhmNbmBGyCH8EzK/FT42vAw7rp3
NqnEH9DFNDx7SDVql/liDKKSBWDfZu+QjhU4qPdEuL8bZ0EW3wTmAc2WNnQY7M+t
A8ryjVM7qonJLY78YwIDAQAB"

Answer

first. are you using yours DNS server or some VPS? there were trables that IPS DNS servers makes yours IN TXT entry to lowercase.

second. try to remove g=*

Check yours TXT records from outside your server,some external resource

Attribution
Source : Link , Question Author : N-AccessDev , Answer Author : MealstroM

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