All,
Exim 4.82 on up-to-date Ubuntu 12.04 LTS server 64-bit. Using DKIM and
seeing "syntax in public key" errors from some (a few) hosts, for example:
2014-03-31 12:53:30 CONNECT: Accepting connection from:
216.180.230.250 - not blocked by any RBL
2014-03-31 12:53:30 HELO: Accepted HELO/EHLO m78.madmimi.com from
remote host: 216.180.230.250 (m78.madmimi.com)
2014-03-31 12:53:30 MAIL: SPF Result=pass (m78.madmimi.com /
m78.madmimi.com [216.180.230.250])
2014-03-31 12:53:30 MAIL: Accept from: mailman@??? host:
m78.madmimi.com [216.180.230.250]
2014-03-31 12:53:30 RCPT: SPF Result2=pass (m78.madmimi.com /
m78.madmimi.com [216.180.230.250])
2014-03-31 12:53:30 1WUamQ-0005wP-IP DKIM: d=madmimi.com s=jul13mimi
c=relaxed/relaxed a=rsa-sha1 [invalid - syntax error in public key record]
2014-03-31 12:53:30 1WUamQ-0005wP-IP DKIM START:
domain=m78.madmimi.com possible_signer=madmimi.com status=invalid
(reason=pubkey_syntax)
2014-03-31 12:53:30 1WUamQ-0005wP-IP DKIM DEFER: domain=m78.madmimi.com
2014-03-31 12:53:30 1WUamQ-0005wP-IP H=m78.madmimi.com
[216.180.230.250] temporarily rejected DKIM : Message from
m78.madmimi.com cannot be verified
However when I check them out with ProtoDave's tool, here:
http://www.protodave.com/tools/dkim-key-checker/
he validates it okay and returns "success":
DNS QUERY: jul13mimi._domainkey.madmimi.com
QUERY STATUS: Success
TXT RECORD: jul13mimi._domainkey.madmimi.com. 300 IN TXT "k=rsa\;
p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuThrbTu+nsO0xUR7Ht1mF7nAuIaSD0b6OMYxIxIxv3gFWwZj7J4M3TnJ0B78ViZHzWDrBKxBUjamToMD5NmNDsgJGE+Jl/gdkMb8bf9DLlJ69YVfr6SDPizSE8M8dOIbykeHXAev98liQK0GTs2+0i3qxhb19kbPOuq8MNDa+WwZVrH79JUUZCV6blAUGpuqZ17\\\"
\\\"p"
"l9G35v7iY21odGO5SoWHhUp5n2kvw5XEjnAOXcq6mJUdczoygqlFjgdu5I1uCOgnCTbE2/RuPy6kmWHa9I0QjxPf7pItQvK5r5cInsHw/s4iVFc1/ULX9nKzkKMN5upRNvHjwDWEAJYZpTcV0wIDAQAB"
KEY LENGTH (BITS): 2048
VERSION:
KEY TYPE: rsa
GRANULARITY:
HASHES:
SERVICE TYPE:
FLAGS:
NOTES:
PUBLIC KEY:
-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuThrbTu+nsO0xUR7Ht1mF7nAuIaSD0b6OM
YxIxIxv3gFWwZj7J4M3TnJ0B78ViZHzWDrBKxBUjamToMD5NmNDsgJGE+Jl/gdkMb8bf9DLlJ69YVf
r6SDPizSE8M8dOIbykeHXAev98liQK0GTs2+0i3qxhb19kbPOuq8MNDa+WwZVrH79JUUZCV6blAUGp
uqZ17pl9G35v7iY21odGO5SoWHhUp5n2kvw5XEjnAOXcq6mJUdczoygqlFjgdu5I1uCOgnCTbE2/Ru
Py6kmWHa9I0QjxPf7pItQvK5r5cInsHw/s4iVFc1/ULX9nKzkKMN5upRNvHjwDWEAJYZpTcV0wIDAQ
AB
-----END PUBLIC KEY-----
Can anyone shed any light on this?
Madmimi appear to be doing the "right thing"(tm) but Exim is failing to
parse the key?
Mike Tubby MJT4-RIPE
