Hello everyone!
My server is still rather new, so I have a not so tight policy set up.
And I ask for reports at the dmarc record.
postconf -n
*****
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
biff = no
compatibility_level = 3.6
inet_interfaces = all
inet_protocols = all
mailbox_size_limit = 0
message_size_limit = 1024000000
milter_mail_macros = i {mail_addr} {client_addr} {client_name} {auth_authen}
mydestination = $myhostname, mail.jungersen.dk, localhost.jungersen.dk,
, localhost
myhostname = mail.jungersen.dk
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
myorigin = /etc/mailname
non_smtpd_milters = inet:127.0.0.1:11332
readme_directory = no
recipient_delimiter = +
relayhost =
smtp_tls_CApath = /etc/ssl/certs
smtp_tls_security_level = may
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
smtpd_milters = inet:127.0.0.1:11332
smtpd_recipient_restrictions =
reject_unauth_destination,check_policy_service unix:private/quota-status
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated
defer_unauth_destination
smtpd_sasl_auth_enable = yes
smtpd_sasl_path = private/auth
smtpd_sasl_type = dovecot
smtpd_sender_login_maps = mysql:/etc/postfix/mysql-email2email.cf
smtpd_tls_auth_only = yes
smtpd_tls_cert_file =
/etc/letsencrypt/live/webmail.jungersen.dk/fullchain.pem
smtpd_tls_key_file = /etc/letsencrypt/live/webmail.jungersen.dk/privkey.pem
smtpd_tls_security_level = may
virtual_alias_maps =
mysql:/etc/postfix/mysql-virtual-alias-maps.cf,mysql:/etc/postfix/mysql-email2email.cf
virtual_mailbox_domains =
mysql:/etc/postfix/mysql-virtual-mailbox-domains.cf
virtual_mailbox_maps = mysql:/etc/postfix/mysql-virtual-mailbox-maps.cf
virtual_transport = lmtp:unix:private/dovecot-lmtp
*****
I see 3 things that worry me about this record:
*****
<record>
<row>
<source_ip>212.27.12.12</source_ip>
<count>2</count>
<policy_evaluated>
<disposition>none</disposition>
<dkim>fail</dkim>
<spf>fail</spf>
</policy_evaluated>
</row>
<identifiers>
<envelope_to>some-real-receiver.tld</envelope_to>
<envelope_from><></envelope_from>
<header_from>mail.jungersen.dk</header_from>
</identifiers>
<auth_results>
<spf>
<domain>mail.jungersen.dk</domain>
<scope>helo</scope>
<result>none</result>
</spf>
</auth_results>
</record>
*****
I suspect that it is NOT a normal e-mail, but some sort of automatic
error / information sent back to the sender.
1)
The reason for my suspicion is that I do not send e-mail from
"mail.jungersen.dk" only "jungersen.dk"
So where do I change that, without breaking anything.
I still want my server to be called "mail.jungersen.dk" so that rDNS
will be compliant.
I have searched online, but am still confused about what to change.
mydomain? myhostname? /etc/mailname?
2)
Why is the " <envelope_from>" gibberish?
All other records have "jungersen.dk" in it.
3)
It seems like these mails have not been dkim signed, or am I reading it
wrong?
If I'm not wrong, what do I do to correct it?
--
Med venlig hilsen
Danjel Jungersen
Jungersen Grafisk ApS
www.jungersen.dk <https://www.jungersen.dk>
Holsbjergvej 39
2620 Albertslund
Tel: 43 64 10 00
Mobil: 20 42 20 11
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