Mail occasionally "loops back to myself"
Dear all,
I'm running 10.4.6 server as a mail server.
Since a couple of days, mails sent out by my users occasionally ⚠ bounces with a "address loops back to myself" error.
Sometimes, after an hour, everything is fine.
In the log file it looks like this (mail address has been masked):
May 15 12:21:52 mail postfix/smtp[16932]: B997092184B: to=<AAAAAA@physik.rwth-aachen.de>, relay=0[0.0.0.0], delay=1, status=bounced (mail for physik.rwth-aachen.de loops back to myself)
May 15 13:40:35 mail postfix/smtp[17571]: A5315922224: to=<AAAAAA@physik.rwth-aachen.de>, relay=127.0.0.1[127.0.0.1], delay=2, status=sent (250 2.6.0 Ok, id=17558-02, from MTA: 250 Ok: queued as 3697692222F)
Any postfix expert here? postconf -n looks like this:
access map_rejectcode = 554
alias_maps = hash:/etc/aliases,hash:/var/mailman/data/aliases
berkeley db_create_buffersize = 16777216
berkeley db_read_buffersize = 131072
body checks_sizelimit = 51200
bounce sizelimit = 50000
command_directory = /usr/sbin
config_directory = /etc/postfix
content_filter = smtp-amavis:[127.0.0.1]:10024
daemon_directory = /usr/libexec/postfix
debug peerlevel = 2
default delivery_slotcost = 5
default delivery_slotdiscount = 50
default delivery_slotloan = 3
default destination_concurrencylimit = 20
default destination_recipientlimit = 50
default extra_recipientlimit = 1000
default minimum_deliveryslots = 3
default processlimit = 100
default recipientlimit = 10000
defer_code = 450
deliver lockattempts = 20
duplicate filterlimit = 1000
enable serveroptions = yes
fallback_relay = 0
fallback_transport = 0
fault injectioncode = 0
fork_attempts = 5
hash queuedepth = 1
hopcount_limit = 50
html_directory = no
inet_interfaces = all
initial destinationconcurrency = 5
invalid hostname_rejectcode = 501
line lengthlimit = 2048
lmtp tcpport = 24
local destination_concurrencylimit = 2
local destination_recipientlimit = 1
local recipientmaps = proxy:unix:passwd.byname $alias_maps
luser_relay =
mail_owner = postfix
mailbox sizelimit = 0
mailbox_transport = cyrus
mailq_path = /usr/bin/mailq
manpage_directory = /usr/share/man
maps rbldomains =
maps rbl_rejectcode = 554
max_use = 100
message sizelimit = 10240000
mime boundary_lengthlimit = 2048
mime nestinglimit = 100
mydestination = $myhostname,$mydomain,whep.uni-wuppertal.de
mydomain = physik.uni-wuppertal.de
mydomain_fallback = localhost
myhostname = mail.physik.uni-wuppertal.de
mynetworks = 127.0.0.1/32,132.195.104.0/24,132.195.105.0/24,132.195.108.0/24,132.195.109.0/2 4
mynetworks_style = host
newaliases_path = /usr/bin/newaliases
non fqdn_rejectcode = 504
owner requestspecial = no
qmgr fudgefactor = 100
qmgr message_activelimit = 20000
qmgr message_recipientminimum = 10
qmqpd authorizedclients = 0
queue_directory = /private/var/spool/postfix
queue file_attribute_countlimit = 100
readme_directory = /usr/share/doc/postfix
recipient_delimiter = +
relay domains_rejectcode = 554
sample_directory = /usr/share/doc/postfix/examples
sendmail_path = /usr/sbin/sendmail
setgid_group = postdrop
smtp line_lengthlimit = 990
smtpd clientrestrictions = permit_mynetworks, permit saslauthenticated, reject unknownclient, reject rblclient relays.ordb.org
smtpd hard_errorlimit = 20
smtpd helorequired = yes
smtpd helorestrictions = permit_mynetworks, reject invalidhostname, reject unknownhostname, reject non_fqdnhostname
smtpd history_flushthreshold = 100
smtpd junk_commandlimit = 100
smtpd noopcommands = 0
smtpd pw_server_securityoptions = login
smtpd recipientlimit = 1000
smtpd recipientrestrictions = permit sasl_authenticated,permit_mynetworks,reject_unauthdestination,permit
smtpd sasl_authenable = yes
smtpd sasl_securityoptions = noanonymous
smtpd senderrestrictions = reject unknown_senderdomain, reject non_fqdn_sendersmtpd_soft_errorlimit = 10
smtpd tls_certfile = /etc/certificates/mail.physik.uni-wuppertal.de.crt
smtpd tls_keyfile = /etc/certificates/mail.physik.uni-wuppertal.de.key
smtpd use_pwserver = yes
smtpd usetls = yes
unknown address_rejectcode = 450
unknown client_rejectcode = 450
unknown hostname_rejectcode = 450
unknown local_recipient_rejectcode = 550
unknown relay_recipient_rejectcode = 550
unknown virtual_alias_rejectcode = 550
unknown virtual_mailbox_rejectcode = 550
virtual mailboxdomains =
virtual mailboxlimit = 51200000
virtual minimumuid = 100
XServe Mac OS X (10.4.6)
I'm running 10.4.6 server as a mail server.
Since a couple of days, mails sent out by my users occasionally ⚠ bounces with a "address loops back to myself" error.
Sometimes, after an hour, everything is fine.
In the log file it looks like this (mail address has been masked):
May 15 12:21:52 mail postfix/smtp[16932]: B997092184B: to=<AAAAAA@physik.rwth-aachen.de>, relay=0[0.0.0.0], delay=1, status=bounced (mail for physik.rwth-aachen.de loops back to myself)
May 15 13:40:35 mail postfix/smtp[17571]: A5315922224: to=<AAAAAA@physik.rwth-aachen.de>, relay=127.0.0.1[127.0.0.1], delay=2, status=sent (250 2.6.0 Ok, id=17558-02, from MTA: 250 Ok: queued as 3697692222F)
Any postfix expert here? postconf -n looks like this:
access map_rejectcode = 554
alias_maps = hash:/etc/aliases,hash:/var/mailman/data/aliases
berkeley db_create_buffersize = 16777216
berkeley db_read_buffersize = 131072
body checks_sizelimit = 51200
bounce sizelimit = 50000
command_directory = /usr/sbin
config_directory = /etc/postfix
content_filter = smtp-amavis:[127.0.0.1]:10024
daemon_directory = /usr/libexec/postfix
debug peerlevel = 2
default delivery_slotcost = 5
default delivery_slotdiscount = 50
default delivery_slotloan = 3
default destination_concurrencylimit = 20
default destination_recipientlimit = 50
default extra_recipientlimit = 1000
default minimum_deliveryslots = 3
default processlimit = 100
default recipientlimit = 10000
defer_code = 450
deliver lockattempts = 20
duplicate filterlimit = 1000
enable serveroptions = yes
fallback_relay = 0
fallback_transport = 0
fault injectioncode = 0
fork_attempts = 5
hash queuedepth = 1
hopcount_limit = 50
html_directory = no
inet_interfaces = all
initial destinationconcurrency = 5
invalid hostname_rejectcode = 501
line lengthlimit = 2048
lmtp tcpport = 24
local destination_concurrencylimit = 2
local destination_recipientlimit = 1
local recipientmaps = proxy:unix:passwd.byname $alias_maps
luser_relay =
mail_owner = postfix
mailbox sizelimit = 0
mailbox_transport = cyrus
mailq_path = /usr/bin/mailq
manpage_directory = /usr/share/man
maps rbldomains =
maps rbl_rejectcode = 554
max_use = 100
message sizelimit = 10240000
mime boundary_lengthlimit = 2048
mime nestinglimit = 100
mydestination = $myhostname,$mydomain,whep.uni-wuppertal.de
mydomain = physik.uni-wuppertal.de
mydomain_fallback = localhost
myhostname = mail.physik.uni-wuppertal.de
mynetworks = 127.0.0.1/32,132.195.104.0/24,132.195.105.0/24,132.195.108.0/24,132.195.109.0/2 4
mynetworks_style = host
newaliases_path = /usr/bin/newaliases
non fqdn_rejectcode = 504
owner requestspecial = no
qmgr fudgefactor = 100
qmgr message_activelimit = 20000
qmgr message_recipientminimum = 10
qmqpd authorizedclients = 0
queue_directory = /private/var/spool/postfix
queue file_attribute_countlimit = 100
readme_directory = /usr/share/doc/postfix
recipient_delimiter = +
relay domains_rejectcode = 554
sample_directory = /usr/share/doc/postfix/examples
sendmail_path = /usr/sbin/sendmail
setgid_group = postdrop
smtp line_lengthlimit = 990
smtpd clientrestrictions = permit_mynetworks, permit saslauthenticated, reject unknownclient, reject rblclient relays.ordb.org
smtpd hard_errorlimit = 20
smtpd helorequired = yes
smtpd helorestrictions = permit_mynetworks, reject invalidhostname, reject unknownhostname, reject non_fqdnhostname
smtpd history_flushthreshold = 100
smtpd junk_commandlimit = 100
smtpd noopcommands = 0
smtpd pw_server_securityoptions = login
smtpd recipientlimit = 1000
smtpd recipientrestrictions = permit sasl_authenticated,permit_mynetworks,reject_unauthdestination,permit
smtpd sasl_authenable = yes
smtpd sasl_securityoptions = noanonymous
smtpd senderrestrictions = reject unknown_senderdomain, reject non_fqdn_sendersmtpd_soft_errorlimit = 10
smtpd tls_certfile = /etc/certificates/mail.physik.uni-wuppertal.de.crt
smtpd tls_keyfile = /etc/certificates/mail.physik.uni-wuppertal.de.key
smtpd use_pwserver = yes
smtpd usetls = yes
unknown address_rejectcode = 450
unknown client_rejectcode = 450
unknown hostname_rejectcode = 450
unknown local_recipient_rejectcode = 550
unknown relay_recipient_rejectcode = 550
unknown virtual_alias_rejectcode = 550
unknown virtual_mailbox_rejectcode = 550
virtual mailboxdomains =
virtual mailboxlimit = 51200000
virtual minimumuid = 100
XServe Mac OS X (10.4.6)
