Thanks for your responses.
I just did a few tests and I changed my config the following way for the
mailing:
mailman.cfg
<<<<<
[mta]
incoming: mailman.mta.postfix.LMTP
outgoing: mailman.mta.deliver.deliver
lmtp_host: 127.0.0.1
lmtp_port: 8024
smtp_host: localhost
smtp_port: 25
verp_confirmations: no
verp_personalized_deliveries: no
verp_delivery_interval: 0
verp_delimiter: +
>>>>>
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
local_recipient_maps = hash:/opt/mailman/mm/var/data/postfix_lmtp
mailbox_size_limit = 0
mydestination = $myhostname, mailing.tester.de, localhost.tester.de, , localhost
myhostname = mailing.tester.de
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
myorigin = /etc/mailname
owner_request_special = no
readme_directory = no
recipient_delimiter = +
relay_domains = hash:/opt/mailman/mm/var/data/postfix_domains
relayhost = [172.25.10.24]:25
smtp_tls_CApath = /etc/ssl/certs
smtp_tls_security_level = may
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated
defer_unauth_destination
smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key
smtpd_tls_security_level = may
transport_maps = hash:/opt/mailman/mm/var/data/postfix_lmtp
unknown_local_recipient_reject_code = 550
>>>>>
When I try to subscribe to a list called "Smartcity" the email is processed and
the smtp.log shows the following lines:
<<<<<
Nov 27 20:53:38 2025 (146986)
<176427321849.147026.3535542433696669790@tester-test-mailman.tester.local> smtp
to [email protected] for 1 recips, completed in 0.032538414001464844
seconds
Nov 27 20:53:38 2025 (146986)
<176427321849.147026.3535542433696669790@tester-test-mailman.tester.local> post
to [email protected] from [email protected], 999 bytes
Nov 27 20:53:38 2025 (146985) Available AUTH mechanisms: LOGIN(builtin)
PLAIN(builtin)
Nov 27 20:53:38 2025 (146985) Peer: ('127.0.0.1', 40180)
Nov 27 20:53:38 2025 (146985) ('127.0.0.1', 40180) handling connection
Nov 27 20:53:38 2025 (146985) ('127.0.0.1', 40180) >> b'LHLO mailing.tester.de'
Nov 27 20:53:38 2025 (146985) ('127.0.0.1', 40180) >> b'MAIL
FROM:<[email protected]> SIZE=1241'
Nov 27 20:53:38 2025 (146985) ('127.0.0.1', 40180) sender:
[email protected]
Nov 27 20:53:38 2025 (146985) ('127.0.0.1', 40180) >> b'RCPT
TO:<[email protected]>'
Nov 27 20:53:38 2025 (146985) ('127.0.0.1', 40180) recip:
[email protected]
Nov 27 20:53:38 2025 (146985) ('127.0.0.1', 40180) >> b'DATA'
Nov 27 20:53:38 2025 (146985) ('127.0.0.1', 40180) >> b'QUIT'
Nov 27 20:53:38 2025 (146985) ('127.0.0.1', 40180) connection lost
Nov 27 20:53:38 2025 (146985) ('127.0.0.1', 40180) Connection lost during
_handle_client()
Nov 27 20:53:40 2025 (146986)
<176427321849.147026.3535542433696669790@tester-test-mailman.tester.local> smtp
to [email protected] for 1 recips, completed in 0.009531497955322266
seconds
Nov 27 20:53:40 2025 (146986)
<176427321849.147026.3535542433696669790@tester-test-mailman.tester.local> post
to [email protected] from [email protected], 1241
bytes
Nov 27 20:53:40 2025 (146985) Available AUTH mechanisms: LOGIN(builtin)
PLAIN(builtin)
Nov 27 20:53:40 2025 (146985) Peer: ('127.0.0.1', 40190)
Nov 27 20:53:40 2025 (146985) ('127.0.0.1', 40190) handling connection
Nov 27 20:53:40 2025 (146985) ('127.0.0.1', 40190) >> b'LHLO mailing.tester.de'
Nov 27 20:53:40 2025 (146985) ('127.0.0.1', 40190) >> b'MAIL FROM:<> SIZE=3666
BODY=8BITMIME'
Nov 27 20:53:40 2025 (146985) ('127.0.0.1', 40190) sender: <>
Nov 27 20:53:40 2025 (146985) ('127.0.0.1', 40190) >> b'RCPT
TO:<[email protected]>'
Nov 27 20:53:40 2025 (146985) ('127.0.0.1', 40190) recip:
[email protected]
Nov 27 20:53:40 2025 (146985) ('127.0.0.1', 40190) >> b'DATA'
Nov 27 20:53:40 2025 (146985) ('127.0.0.1', 40190) >> b'QUIT'
Nov 27 20:53:40 2025 (146985) ('127.0.0.1', 40190) connection lost
Nov 27 20:53:40 2025 (146985) ('127.0.0.1', 40190) Connection lost during
_handle_client()
>>>>>
mailman.log
<<<<<
[27/Nov/2025:20:53:31 +0100] "GET /3.1/lists/smartcity.mailing.tester.de
HTTP/1.1" 200 446 "-" "GNU Mailman REST client v3.3.5"
[27/Nov/2025:20:53:31 +0100] "GET
/3.1/lists/[email protected]/requests?token_owner=subscriber&request_type=subscription
HTTP/1.1" 200 90 "-" "GNU Mailman REST client v3.3.5"
[27/Nov/2025:20:53:31 +0100] "GET
/3.1/lists/[email protected]/requests/count?token_owner=moderator
HTTP/1.1" 200 73 "-" "GNU Mailman REST client v3.3.5"
[27/Nov/2025:20:53:31 +0100] "GET
/3.1/lists/[email protected]/held/count HTTP/1.1" 200 73 "-" "GNU
Mailman REST client v3.3.5"
[27/Nov/2025:20:53:32 +0100] "GET /3.1/lists/smartcity.mailing.tester.de
HTTP/1.1" 200 446 "-" "GNU Mailman REST client v3.3.5"
[27/Nov/2025:20:53:32 +0100] "GET
/3.1/lists/[email protected]/requests?token_owner=moderator&request_type=subscription
HTTP/1.1" 200 90 "-" "GNU Mailman REST client v3.3.5"
[27/Nov/2025:20:53:32 +0100] "GET
/3.1/lists/[email protected]/requests/count?token_owner=moderator
HTTP/1.1" 200 73 "-" "GNU Mailman REST client v3.3.5"
[27/Nov/2025:20:53:32 +0100] "GET
/3.1/lists/[email protected]/held/count HTTP/1.1" 200 73 "-" "GNU
Mailman REST client v3.3.5"
Nov 27 20:53:38 2025 (147026) [email protected]: held subscription
request from [email protected]
[27/Nov/2025:20:53:38 +0100] "POST /3.1/members HTTP/1.0" 202 142 "-" "-"
Nov 27 20:53:39 2025 (146984) OWNER:
<176427321849.147026.3535542433696669790@tester-test-mailman.tester.local>
>>>>>
On my relaying mail host the email is coming up in "MAIL FROM" is set
"[email protected]" but the fields
"Header-From", "Recipient" and "subject" are empty.
Why is the e-mail passed to my MTA but the adresses are not resolved correctly
from before in Mailman3?
Thanks and regards
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