https://bz.apache.org/SpamAssassin/show_bug.cgi?id=8397
Bug ID: 8397
Summary: TONLINE_FAKE_DKIM might be obsolete: t-online.de does
DKIM signing now
Product: Spamassassin
Version: unspecified
Hardware: PC
OS: Mac OS X
Status: NEW
Severity: minor
Priority: P2
Component: Rules
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: Undefined
Since a few months t-online.de does now DKIM signing:
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=t-online.de;
s=20260216; t=1780329653; h=Date:To:From:Subject;
20260216._domainkey.t-online.de. 48965 IN TXT "v=DKIM1; k=rsa; "
"p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv5+ikQHE2VLR+8J5av2KNVfzxHBMCk95jwreFLrI76oQwtyOVGJKKMouXtwvBAfj3hlxRQkLOIe3gA"
"ELzjseXzMwW2vju6veur+rfDi2F8s5U3jlmKYANf39/hsdnd2ILmfEbIs6J/keJPt6yp5H+jKJlJX6VMjvbNWVJED8t1lF/QLVHfNt1zJ8G01sZxWX65kGDb4EFt"
"g3Ypx+UBs1+NggNU0oAO/rnVH7cIu2YX6Ll6ZELgwXGOftRrr4pXtuIA/kc9/0x06DwLSPkLxiWplVrHKSwrhqrW1EsibfvzAH3e6D47LAjmXQBVnnGinV+u6OkQ"
"W6ThYH64UoEocCBQIDAQAB"
Unfortunately i could not find any offical statement of telekom.de or
t-online.de that they do DKIM signing now.
https://postmaster.t-online.de still says the are not doing DKIM signatures.
Last month our servers received about 25.000 mails from t-online.de:
About 92% of the mails had also DKIM_VALID_AU.
About 2% had an invalid DKIM signature
About 6% had no DKIM signature (e.g. DSNs)
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