OpenDKIM 給出未找到密鑰的錯誤

所以我已經用 Postfix 設置了 OpenDKIM，我仍然可以發送電子郵件，但是當我這樣做時： opendkim-testkey -d example.com -s mail -vvv

我回來了：

opendkim-testkey: using default configfile /etc/opendkim.conf opendkim-testkey: checking key 'mail._domainkey.example.com' opendkim-testkey: No key

如果我使用 check-auth@verifier.port25.com 它說

DKIM check: permerror和result: permerror (no usable key records)

但在電子郵件中，我可以在帶有 s=mail 和 d=mydomain.com 等的電子郵件標頭中看到我的公鑰…

/etc/opendkim/ 設置為 opendkim:opendkim 用於使用者和組。

我的 opendkim.conf：

# This is a basic configuration that can easily be adapted to suit a standard
# installation. For more advanced options, see opendkim.conf(5) and/or
# /usr/share/doc/opendkim/examples/opendkim.conf.sample.

# Log to syslog
Syslog                  yes
# Required to use local socket with MTAs that access the socket as a non-
# privileged user (e.g. Postfix)
UMask                   002

# Sign for example.com with key in /etc/mail/dkim.key using
# selector '2007' (e.g. 2007._domainkey.example.com)
#Domain                 example.com
#KeyFile                /etc/mail/dkim.key
Selector                mail

# Commonly-used options; the commented-out versions show the defaults.
#Canonicalization       simple
#Mode                   sv
#SubDomains             no
#ADSPAction            continue

# Always oversign From (sign using actual From and a null From to prevent
# malicious signatures header fields (From and/or others) between the signer
# and the verifier.  From is oversigned by default in the Debian pacakge
# because it is often the identity key used by reputation systems and thus
# somewhat security sensitive.
OversignHeaders         From

# List domains to use for RFC 6541 DKIM Authorized Third-Party Signatures
# (ATPS) (experimental)

#ATPSDomains            example.com

###########################
# My Config Setup Below   #
###########################

AutoRestart             Yes
AutoRestartRate         10/1h
SyslogSuccess           Yes
LogWhy                  Yes

Canonicalization        relaxed/simple

ExternalIgnoreList      refile:/etc/opendkim/TrustedHosts
InternalHosts           refile:/etc/opendkim/TrustedHosts
KeyTable                /etc/opendkim/KeyTable
SigningTable            refile:/etc/opendkim/SigningTable

Mode                    sv
PidFile                 /var/run/opendkim/opendkim.pid
SignatureAlgorithm      rsa-sha256

UserID                  opendkim:opendkim

Socket                  inet:12301@localhost

我的 KeyTable 文件：

example.com example.com:mail:/etc/opendkim/keys/example.com/mail.private

我的簽名表文件：

*@example.com example.com

非常感謝您對此的任何幫助。

現在整理好了。

我將公鑰放在主要部分的 DNS 記錄中，而我應該將它放在子域部分中，並以 mail._domainkey.example.com 作為名稱/子域。

引用自：https://serverfault.com/questions/878535