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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"
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If accessdev-mail.com is your real domain, your DNS is in bad shape. The DNS servers according to whois are SD2.ACCESS-DEV.FR which returns no results for any queries (including SOA) about the accessdev-mail.com domain, and SDNS2.OVH.NET which I can't seem to get that TXT record from. –  DerfK Apr 20 '11 at 15:17
    
Note that if you send the e-mails out via PHP mail() this could be causing trouble as well. Unfortunately I cannot remember exactly what fixed it and the server I used it on does not exist any longer. –  Frands Hansen May 26 '11 at 13:24
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1 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

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I m on a dedicated server , not VPS. my dns server is bind9 , i removed g=* but still the same problem (bad format) –  N-AccessDev Apr 22 '11 at 9:42
    
look like yours provided info is right. try to recreate yours keys private and public –  MealstroM Apr 22 '11 at 10:51
    
Can you check yours dns records from external source with dig or nslookup by txt fields? –  MealstroM Apr 22 '11 at 10:52
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