Can't send e-mails to myself

[WBNet-Wout]

I set up my mail server at server.wbnet.eu using Haraka and Cyrus IMAP.

I am successfully able to send e-mails from my mail server to other servers and am also successfully able to send e-mails from other servers to my mail server. The only thing that is not working is sending e-mails from my mail server to my mails server. When sending e.g. from wout@wbnet.eu to wout@wbnet.eu, I am getting the following messages in my logs:

[INFO] [-] [core] client requested TLS resumeSession
[NOTICE] [264DACD7-2E24-414F-8A1F-4D13FF20A600] [core] connect ip=2a03:4000:50:bd::1 port=34820 local_ip=2a03:4000:50:bd::1 local_port=465
[INFO] [264DACD7-2E24-414F-8A1F-4D13FF20A600] [helo.checks] helo_host: mail.wbnet.eu, skip:proto_mismatch(private), match_re(private), bare_ip(private), dynamic(private), big_company(private), valid_hostname(private), rdns_match(private), forward_dns(private), host_mismatch(private)
[INFO] [264DACD7-2E24-414F-8A1F-4D13FF20A600] [core]  hook=unrecognized_command plugin=auth-imap function=hook_unrecognized_command params=AUTH retval=OK msg=""
[INFO] [264DACD7-2E24-414F-8A1F-4D13FF20A600] [core]  hook=unrecognized_command plugin=auth-imap function=hook_unrecognized_command params="[redacted]" retval=OK msg=""
[INFO] [264DACD7-2E24-414F-8A1F-4D13FF20A600] [auth-imap] AUTH user="wout@wbnet.eu" success=true
[INFO] [264DACD7-2E24-414F-8A1F-4D13FF20A600] [core]  hook=unrecognized_command plugin=auth-imap function=hook_unrecognized_command params="[redacted]" retval=OK msg=""
[NOTICE] [264DACD7-2E24-414F-8A1F-4D13FF20A600.1] [core] sender <wout@wbnet.eu> code=CONT msg=""
[INFO] [264DACD7-2E24-414F-8A1F-4D13FF20A600.1] [core]  hook=rcpt plugin=rcpt_to.in_host_list function=hook_rcpt params=<wout@wbnet.eu> retval=OK msg=""
[NOTICE] [264DACD7-2E24-414F-8A1F-4D13FF20A600.1] [core] recipient <wout@wbnet.eu> code=OK msg="" sender=wout@wbnet.eu
[NOTICE] [264DACD7-2E24-414F-8A1F-4D13FF20A600.1] [core] message mid=<c6e39a718c45f7fdacf316181dabf72e@wbnet.eu> size=335 rcpts=1/0/0 delay=0.003 code=CONT msg=""
[NOTICE] [264DACD7-2E24-414F-8A1F-4D13FF20A600.1] [core] queue code=CONT msg="Message Queued (264DACD7-2E24-414F-8A1F-4D13FF20A600.1)"
[INFO] [-] [core] [outbound] Transaction delivery for domain: wbnet.eu
[NOTICE] [264DACD7-2E24-414F-8A1F-4D13FF20A600.1] [core] queue code=OK msg="Message Queued (264DACD7-2E24-414F-8A1F-4D13FF20A600.1)"
[INFO] [-] [core] loading tls.ini
[NOTICE] [264DACD7-2E24-414F-8A1F-4D13FF20A600.1] [core] disconnect ip=2a03:4000:50:bd::1 rdns=server.wbnet.eu helo=mail.wbnet.eu relay=Y early=N esmtp=Y tls=Y pipe=N errors=0 txns=1 rcpts=1/0/0 msgs=1/0/0 bytes=335 lr="" time=0.153
[INFO] [264DACD7-2E24-414F-8A1F-4D13FF20A600.1.1] [outbound] Temp failing 1709660174775_1709660174775_0_6942_EflCxR_6_server.wbnet.eu for 64 seconds: Tried all MXs

What can be the reason that this is not working? Thanks in advance.

config/plugins

# This file lists plugins that Haraka will run
#
# Plugin ordering often matters, run 'haraka -o -c /path/to/haraka/config'
# to see the order plugins (and their hooks) will run in.
#
# To see a list of all plugins, run 'haraka -l'
#
# To see the help docs for a particular plugin, run 'haraka -h plugin.name'

#status
#process_title
# Log to syslog (see 'haraka -h syslog')
# syslog

# CONNECT
#toobusy
#karma
relay
# control which IPs, rDNS hostnames, HELO hostnames, MAIL FROM addresses, and
# RCPT TO address you accept mail from. See 'haraka -h access'.
# access
# p0f
# geoip
# asn
# fcrdns
# block mails from known bad hosts (see config/dnsbl.zones for the DNS zones queried)
#dnsbl

# HELO
#early_talker
# see config/helo.checks.ini for configuration
helo.checks
# see 'haraka -h tls' for config instructions before enabling!
tls
#
# AUTH plugins require TLS before AUTH is advertised, see
#     https://github.com/haraka/Haraka/wiki/Require-SSL-TLS
# auth/flat_file
# auth/auth_proxy
# auth/auth_ldap
auth-imap

# MAIL FROM
# Only accept mail where the MAIL FROM domain is resolvable to an MX record
mail_from.is_resolvable
#spf

# RCPT TO
# At least one rcpt_to plugin is REQUIRED for inbound email. The simplest
# plugin is in_host_list, see 'haraka -h rcpt_to.in_host_list' to configure.
aliases
rcpt_to.in_host_list
#qmail-deliverable
#rcpt_to.ldap
#rcpt_to.routes

# DATA
#bounce
# Check mail headers are valid
headers
#uribl
#attachment
#clamd
#spamassassin
rspamd
#dkim_sign
#limit

# QUEUE
# queues: discard  qmail-queue  quarantine  smtp_forward  smtp_proxy
# Queue mail via smtp - see config/smtp_forward.ini for where your mail goes
#queue/smtp_forward
queue/lmtp

#watch

[WBNet-Wout]

I did find out about the local_mx_ok setting in outbound.ini. When setting that to true, I am able to send e-mail to myself, though of course it is not ideal.

Is there a way to directly use the LMTP queue in case of outbound to local domains?

[msimerson]

related to #3300

[msimerson]

Yes. Have your recipient plugin (that validates message recipients), set queue.wants to 'lmtp', and also set the 'queue.next_hop' to the URL of Cyrus (probably something like: lmtp://localhost:24).

[msimerson]

Also, these replies are from memory, I'm away from the keyboard, but it should set you on the right path. I think I may have added a get_mx hook to my recipient plugin that uses the queue.wants mechanism to provide specific routes.