Hi Atilla,
DNS isn't the issue. Apparently nslookup (or my command) was the
issue there, since:
root@myhost:~# dig +short txt
selector1._domainkey.outbound.protection.outlook.com.
"v=DKIM1;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvWyktrIL8DO/+UGvMbv7cPd/Xogpbs7pgVw8y9ldO6AAMmg8+ijENl/c7Fb1MfKM7uG3LMwAr0dVVKyM+mbkoX2k5L7lsROQr0Z9gGSpu7xrnZOa58+/pIhd2Xk/DFPpa5+TKbWodbsSZPRN8z0RY5x59jdzSclXlEyN9mEZdmOiKTsOP6A7vQxfSya9jg5"
"N81dfNNvP7HnWejMMsKyIMrXptxOhIBuEYH67JDe98QgX14oHvGM2Uz53if/SW8MF09rYh9sp4ZsaWLIg6T343JzlbtrsGRGCDJ9JPpxRWZimtz+Up/BlKzT6sCCrBihb/Bi3pZiEBB4Ui/vruL5RCQIDAQAB;n=2048,1452627113,1468351913"
So with dig I do get the DKIM key. And my SPAMD milter also checks
DKIM and says "DKIM valid". The strange part is that with the same
nslookup sequence on for example gmail I don't get the same issue,
but anyway, apparently it isn't the reason for milter-greylist to
complain. Which means I still have no idea. Every other domain is
working fine, but all Microsoft domains get a "retry later" every
single time they connect.
I'm running Ubuntu 18.04, sendmail, milter-greylist, clamav-milter
and spamasassin-milter.
Anyone have any ideas?
KR
Stefan
> > selector1._domainkey.outbound.protection.outlook.com
> ;; Truncated, retrying in TCP mode.
> Server: 127.0.0.53
> Address: 127.0.0.53#53
>
> Non-authoritative answer:
> *** Can't find selector1._domainkey.outbound.protection.outlook.com: No answer
You must have an issue with the domain name resolution. Try to fix it. For me it just works:
$ dig +short txt selector1._domainkey.outbound.protection.outlook.com.
;; Truncated, retrying in TCP mode.
"v=DKIM1\;k=rsa\;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvWyktrIL8DO/+UGvMbv7cPd/Xogpbs7pgVw8y9ldO6AAMmg8+ijENl/c7Fb1MfKM7uG3LMwAr0dVVKyM+mbkoX2k5L7lsROQr0Z9gGSpu7xrnZOa58+/pIhd2Xk/DFPpa5+TKbWodbsSZPRN8z0RY5x59jdzSclXlEyN9mEZdmOiKTsOP6A7vQxfSya9jg5" "N81dfNNvP7HnWejMMsKyIMrXptxOhIBuEYH67JDe98QgX14oHvGM2Uz53if/SW8MF09rYh9sp4ZsaWLIg6T343JzlbtrsGRGCDJ9JPpxRWZimtz+Up/BlKzT6sCCrBihb/Bi3pZiEBB4Ui/vruL5RCQIDAQAB\;n=2048,1452627113,1468351913"
$
-- ================================================================ Stefan Suurmeijer Raptor Network & Web solutions Woldweg 161a NL-9606 PD Kropswolde, The Netherlands tel: (+31) 50 363 9215 / (+31) 6 52 067 168 (cell) E-mail: stefan@raptorweb.nl ================================================================ PGP fingerprint: 2CC6 5313 2F58 862F 1542 AECF 2385 6F8A BC45 9F86 Always acknowledge a fault. This will throw those in authority off their guard and give you an opportunity to commit more - Mark Twain