Miscellaneous first checks
Affected Component(s)
postfix
What happened and when does this occur?
mailserver | Jan 1 12:35:19 mail postfix/smtpd[1556]: NOQUEUE: reject: RCPT from unknown[54.240.85.218]: 450 4.7.25 Client host rejected: cannot find your hostname, [54.240.85.218]; from=<010101856d1d37d3-cb9c308b-0000-0000-0000-a21593c7994e-000000@bounce.stripe.com> to=<[email protected]> proto=ESMTP helo=<a85-218.smtp-out.us-west-2.amazonses.com>
What did you expect to happen?
I expected an option to turn reject_unknown_client_hostname off, if it is not considered necessary. I can overwrite the config in the docker-compose, but that feels hacky.
How do we replicate the issue?
I have absolutely no idea. I don't think this happens for all SES mails.
DMS version
latest (Image Hash: d5db200744f1)
What operating system is DMS running on?
Linux
Which operating system version?
Archlinux
What instruction set architecture is DMS running on?
AMD64 / x86_64
What container orchestration tool are you using?
Docker Compose
docker-compose.yml
services:
mailserver:
image: docker.io/mailserver/docker-mailserver:latest
#entrypoint: ["/bin/sh", "-c", "while true; do sleep 10; done"]
container_name: mailserver
# If the FQDN for your mail-server is only two labels (eg: example.com),
# you can assign this entirely to `hostname` and remove `domainname`.
hostname: mail
domainname: moritz.sh
env_file: mailserver.env
network_mode: host
# More information about the mail-server ports:
# https://docker-mailserver.github.io/docker-mailserver/edge/config/security/understanding-the-ports/
# To avoid conflicts with yaml base-60 float, DO NOT remove the quotation marks.
ports:
- "25:25" # SMTP (explicit TLS => STARTTLS)
- "143:143" # IMAP4 (explicit TLS => STARTTLS)
- "465:465" # ESMTP (implicit TLS)
- "587:587" # ESMTP (explicit TLS => STARTTLS)
- "993:993" # IMAP4 (implicit TLS)
- "4190:4190" # MANAGE SIEVE
volumes:
- ./docker-data/dms/mail-data/:/var/mail/
- ./docker-data/dms/mail-state/:/var/mail-state/
- ./docker-data/dms/mail-logs/:/var/log/mail/
- ./config/:/tmp/docker-mailserver/
- ./docker-data/dms/config/dovecot/fts-xapian-plugin.conf:/etc/dovecot/conf.d/10-plugin.conf:ro
- /etc/localtime:/etc/localtime:ro
- /etc/letsencrypt:/etc/letsencrypt
restart: always
stop_grace_period: 1m
cap_add:
- NET_ADMIN
healthcheck:
test: "ss --listening --tcp | grep -P 'LISTEN.+:smtp' || exit 1"
timeout: 3s
retries: 0
Relevant log output
mailserver | Jan 1 12:35:19 mail postfix/smtpd[1556]: NOQUEUE: reject: RCPT from unknown[54.240.85.218]: 450 4.7.25 Client host rejected: cannot find your hostname, [54.240.85.218]; from=<010101856d1d37d3-cb9c308b-0000-0000-0000-a21593c7994e-000000@bounce.stripe.com> to=<[email protected]> proto=ESMTP helo=<a85-218.smtp-out.us-west-2.amazonses.com>
Other relevant information
No response
What level of experience do you have with Docker and mail servers?
Code of conduct
Improvements to this form?
No response
Miscellaneous first checks
Affected Component(s)
postfix
What happened and when does this occur?
What did you expect to happen?
I expected an option to turn
reject_unknown_client_hostnameoff, if it is not considered necessary. I can overwrite the config in the docker-compose, but that feels hacky.How do we replicate the issue?
I have absolutely no idea. I don't think this happens for all SES mails.
DMS version
latest (Image Hash: d5db200744f1)
What operating system is DMS running on?
Linux
Which operating system version?
Archlinux
What instruction set architecture is DMS running on?
AMD64 / x86_64
What container orchestration tool are you using?
Docker Compose
docker-compose.yml
Relevant log output
Other relevant information
No response
What level of experience do you have with Docker and mail servers?
Code of conduct
Improvements to this form?
No response