exim4 Unrouteable address - smtp

Question

have setup an exim4 for smart-host to migadu.com.
Get an error
2022-06-03 13:10:46 1nx5CY-0002TT-TI <= www-data#localhost U=www-data P=local S=817
2022-06-03 13:10:46 1nx5CY-0002TT-TI ** lars#gnf.dk: Unrouteable address
when trying to send from PHP site (local on machine) to lars#gnf.dk.
Trying to send from CLI like:
echo "Test message" | mail -s "Test message" lars#gnf.dk
2022-06-03 13:23:03 1nx5OR-0002XM-6a <= root#gnf.dk U=root P=local S=339
root#gnf:/etc/exim4# 2022-06-03 13:23:03 1nx5OR-0002XM-6a ** lars#gnf.dk: Unrouteable address
2022-06-03 13:23:03 1nx5OR-0002XP-7I <= <> R=1nx5OR-0002XM-6a U=Debian-exim P=local S=1470
2022-06-03 13:23:03 1nx5OR-0002XM-6a Completed
2022-06-03 13:23:03 1nx5OR-0002XP-7I => lakn <root#gnf.dk> R=local_user T=maildir_home
2022-06-03 13:23:03 1nx5OR-0002XP-7I Completed
if I try to send to lars#dulmens.dk from CLI - it works.
Any idea why this is so?
Br
Lars
cat update-exim4.conf.conf
dc_eximconfig_configtype='smarthost'
dc_other_hostnames='smtp.migadu.com; gnf.dk; localhost'
dc_local_interfaces='127.0.0.1'
dc_readhost='gnf.dk'
dc_relay_domains=''
dc_minimaldns='false'
dc_relay_nets=''
#dc_smarthost='smtp.migadu.com::465'
dc_smarthost='smtp.migadu.com::587'
CFILEMODE='644'
dc_use_split_config='false'
dc_hide_mailname='false'
dc_mailname_in_oh='true'
dc_localdelivery='maildir_home'
disable_ipv6=true
root#gnf:/etc/exim4# /usr/sbin/exim4 -d -bt lars#gnf.dk
Exim version 4.92 uid=0 gid=0 pid=9846 D=f7715cfd
Support for: crypteq iconv() IPv6 GnuTLS move_frozen_messages DANE DKIM DNSSEC Event OCSP PRDR SOCKS TCP_Fast_Open
Lookups (built-in): lsearch wildlsearch nwildlsearch iplsearch cdb dbm dbmjz dbmnz dnsdb dsearch nis nis0 passwd
Authenticators: cram_md5 plaintext
Routers: accept dnslookup ipliteral manualroute queryprogram redirect
Transports: appendfile/maildir/mailstore autoreply lmtp pipe smtp
Fixed never_users: 0
Configure owner: 0:0
Size of off_t: 8
Compiler: GCC [8.3.0]
Library version: Glibc: Compile: 2.28
Runtime: 2.28
Library version: BDB: Compile: Berkeley DB 5.3.28: (September 9, 2013)
Runtime: Berkeley DB 5.3.28: (September 9, 2013)
Library version: GnuTLS: Compile: 3.6.7
Runtime: 3.6.7
Library version: PCRE: Compile: 8.39
Runtime: 8.39 2016-06-14
Total 13 lookups
WHITELIST_D_MACROS: "OUTGOING"
TRUSTED_CONFIG_LIST: "/etc/exim4/trusted_configs"
changed uid/gid: forcing real = effective
uid=0 gid=0 pid=9846
auxiliary group list: <none>
seeking password data for user "uucp": cache not available
getpwnam() succeeded uid=10 gid=10
configuration file is /var/lib/exim4/config.autogenerated
log selectors = 0000cffc c6401022 00000001
trusted user
admin user
seeking password data for user "mail": cache not available
getpwnam() succeeded uid=8 gid=8
user name "root" extracted from gecos field "root"
originator: uid=0 gid=0 login=root name=root
sender address = root#localhost
Address testing: uid=0 gid=109 euid=0 egid=109
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Testing lars#gnf.dk
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Considering lars#gnf.dk
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
routing lars#gnf.dk
--------> hubbed_hosts router <--------
local_part=lars domain=gnf.dk
checking domains
expansion of "${if exists{/etc/exim4/hubbed_hosts}{partial-lsearch;/etc/exim4/hubbed_hosts}fail}" forced failure: assume not in this list
hubbed_hosts router skipped: domains mismatch
--------> smarthost router <--------
local_part=lars domain=gnf.dk
checking domains
gnf.dk in "#:localhost:smtp.migadu.com: gnf.dk: localhost"? yes (matched "#")
gnf.dk in "! +local_domains"? no (matched "! +local_domains")
smarthost router skipped: domains mismatch
--------> real_local router <--------
local_part=lars domain=gnf.dk
real_local router skipped: prefix mismatch
--------> system_aliases router <--------
local_part=lars domain=gnf.dk
checking domains
cached yes match for +local_domains
cached lookup data = NULL
gnf.dk in "+local_domains"? yes (matched "+local_domains" - cached)
R: system_aliases for lars#gnf.dk
calling system_aliases router
rda_interpret (string): ${lookup{$local_part}lsearch{/etc/aliases}}
search_open: lsearch "/etc/aliases"
search_find: file="/etc/aliases"
key="lars" partial=-1 affix=NULL starflags=0
LRU list:
7/etc/aliases
End
internal_search_find: file="/etc/aliases"
type=lsearch key="lars"
file lookup required for lars
in /etc/aliases
lookup failed
expanded:
file is not a filter file
parse_forward_list:
system_aliases router declined for lars#gnf.dk
--------> userforward router <--------
local_part=lars domain=gnf.dk
checking domains
cached yes match for +local_domains
cached lookup data = NULL
gnf.dk in "+local_domains"? yes (matched "+local_domains" - cached)
checking for local user
seeking password data for user "lars": cache not available
getpwnam() returned NULL (user not found)
userforward router skipped: lars is not a local user
--------> procmail router <--------
local_part=lars domain=gnf.dk
checking domains
cached yes match for +local_domains
cached lookup data = NULL
gnf.dk in "+local_domains"? yes (matched "+local_domains" - cached)
checking for local user
seeking password data for user "lars": using cached result
getpwnam() returned NULL (user not found)
procmail router skipped: lars is not a local user
--------> maildrop router <--------
local_part=lars domain=gnf.dk
checking domains
cached yes match for +local_domains
cached lookup data = NULL
gnf.dk in "+local_domains"? yes (matched "+local_domains" - cached)
checking for local user
seeking password data for user "lars": using cached result
getpwnam() returned NULL (user not found)
maildrop router skipped: lars is not a local user
--------> lowuid_aliases router <--------
local_part=lars domain=gnf.dk
checking domains
cached yes match for +local_domains
cached lookup data = NULL
gnf.dk in "+local_domains"? yes (matched "+local_domains" - cached)
checking for local user
seeking password data for user "lars": using cached result
getpwnam() returned NULL (user not found)
lowuid_aliases router skipped: lars is not a local user
--------> local_user router <--------
local_part=lars domain=gnf.dk
checking domains
cached yes match for +local_domains
cached lookup data = NULL
gnf.dk in "+local_domains"? yes (matched "+local_domains" - cached)
checking local_parts
lars in "! root"? yes (end of list)
checking for local user
seeking password data for user "lars": using cached result
getpwnam() returned NULL (user not found)
local_user router skipped: lars is not a local user
--------> mail4root router <--------
local_part=lars domain=gnf.dk
checking domains
cached yes match for +local_domains
cached lookup data = NULL
gnf.dk in "+local_domains"? yes (matched "+local_domains" - cached)
checking local_parts
lars in "root"? no (end of list)
mail4root router skipped: local_parts mismatch
no more routers
lars#gnf.dk is undeliverable: Unrouteable address
search_tidyup called
>>>>>>>>>>>>>>>> Exim pid=9846 (main) terminating with rc=2 >>>>>>>>>>>>>>>>
root#gnf:/etc/exim4#