Mailu: can not receive email : Recipient address rejected: unverified address

[changchichung]

I create another new VPS to running mailu couple minutes ago , sending mail is ok .
But I can not get any mail.

the log shows

smtp_1      | postfix/smtpd[534]: NOQUEUE: reject: RCPT from nl3.abelssoft.de[37.120.173.251]: 450 4.1.1 <[email protected]>: Recipient address rejected: unverified address: Address lookup failure; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<abelssoft.de>

and here is the mailu.env

# Subnet of the docker network. This should not conflict with any networks to which your system is connected. (Internal and external!)
SUBNET=192.168.203.0/24

# Main mail domain
DOMAIN=abc.com

# Hostnames for this server, separated with comas
HOSTNAMES=modo.abc.com

# Postmaster local part (will append the main mail domain)
POSTMASTER=admin

# Choose how secure connections will behave (value: letsencrypt, cert, notls, mail, mail-letsencrypt)
TLS_FLAVOR=letsencrypt

# Authentication rate limit (per source IP address)
AUTH_RATELIMIT=10/minute;1000/hour

# Opt-out of statistics, replace with "True" to opt out
DISABLE_STATISTICS=False

###################################
# Optional features
###################################

# Expose the admin interface (value: true, false)
ADMIN=true

# Choose which webmail to run if any (values: roundcube, rainloop, none)
WEBMAIL=roundcube

# Dav server implementation (value: radicale, none)
WEBDAV=radicale

# Antivirus solution (value: clamav, none)
#ANTIVIRUS=none
#Antispam solution
ANTISPAM=none

###################################
# Mail settings
###################################

# Message size limit in bytes
# Default: accept messages up to 50MB
# Max attachment size will be 33% smaller
MESSAGE_SIZE_LIMIT=50000000

# Networks granted relay permissions
# Use this with care, all hosts in this networks will be able to send mail without authentication!
RELAYNETS=

# Will relay all outgoing mails if configured
RELAYHOST=

# Fetchmail delay
FETCHMAIL_DELAY=600

# Recipient delimiter, character used to delimiter localpart from custom address part
RECIPIENT_DELIMITER=+

# DMARC rua and ruf email
DMARC_RUA=admin
DMARC_RUF=admin

# Welcome email, enable and set a topic and body if you wish to send welcome
# emails to all users.
WELCOME=false
WELCOME_SUBJECT=Welcome to your new email account
WELCOME_BODY=Welcome to your new email account, if you can read this, then it is configured properly!

# Maildir Compression
# choose compression-method, default: none (value: bz2, gz)
COMPRESSION=
# change compression-level, default: 6 (value: 1-9)
COMPRESSION_LEVEL=

###################################
# Web settings
###################################

# Path to redirect / to
WEBROOT_REDIRECT=/webmail

# Path to the admin interface if enabled
WEB_ADMIN=/admin

# Path to the webmail if enabled
WEB_WEBMAIL=/webmail

# Website name
SITENAME=Mailu

# Linked Website URL
WEBSITE=https://modo.abc.com



###################################
# Advanced settings
###################################

# Log driver for front service. Possible values:
# json-file (default)
# journald (On systemd platforms, useful for Fail2Ban integration)
# syslog (Non systemd platforms, Fail2Ban integration. Disables `docker-compose log` for front!)
# LOG_DRIVER=json-file

# Docker-compose project name, this will prepended to containers names.
COMPOSE_PROJECT_NAME=mailu
# Default password scheme used for newly created accounts and changed passwords
# (value: BLF-CRYPT, SHA512-CRYPT, SHA256-CRYPT, MD5-CRYPT, CRYPT)
PASSWORD_SCHEME=BLF-CRYPT

# Header to take the real ip from
REAL_IP_HEADER=

# IPs for nginx set_real_ip_from (CIDR list separated by commas)
REAL_IP_FROM=

# choose wether mailu bounces (no) or rejects (yes) mail when recipient is unknown (value: yes, no)
REJECT_UNLISTED_RECIPIENT=

# Log level threshold in start.py (value: CRITICAL, ERROR, WARNING, INFO, DEBUG, NOTSET)
LOG_LEVEL=WARNING

###################################
# Database settings
###################################
DB_FLAVOR=sqlite

I create the docker-compose.yml / mailu.env using https://setup.mailu.io and follow the steps .

any suggestions ?? or need more logs ? thanks !

[changchichung]

gees , it`s odd .
I just stop all dockers and start again , then everything works...
is that necessary to restart docker after initial install ?

[muhlemmer]

gees , it`s odd .
I just stop all dockers and start again , then everything works...
is that necessary to restart docker after initial install ?

No, shouldn't be. But sometimes it does happen... Have seen this myself two / three times. It can be due to failed migrations during start of Admin. Or the Docker resolver not properly resolving the admin hostname. Unfortunately, hard to debug because it almost never happens. (we are re-installing for developing/testing multiple times week, and yet this specific issue almost never appears)

[doy]

i'm also having this issue, but restarting docker doesn't appear to fix it. is there something i can do to debug?

[D3N14L]

Had the same problem. I deleted the the mailu_smtp_1 container with
docker stop and docker rm - and recreated it with docker-compose up. Was able to receive mail afterwards.

[Bambie07]

Same issue here, deleting and recreating the container like @D3N14L said helped

[vanthome]

Same for me, it worked only after this procedure. Maybe it was because I have created the account directly in the SQL DB.