Mailinglist Archive: opensuse (729 mails)

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[opensuse] postfix - server rejecting e-mails from some of my kids devices, fine otherwise

I am usually fairly good a diagnosing postfix problems, but this one has me stumped. For some reason, sending mail from Apple products is now not working. I'm not sure what has happened, as all were working sometime in the past when I configured them for the network, but now, they are not. I don't know if this is an IOS change or what. I haven't changed my postfix config in the interim. All of the devices are on the same subnet. The errors I get are:

Jun 4 15:39:39 nirvana postfix/smtpd[18893]: connect from[]
Jun 4 15:39:39 nirvana postfix/smtpd[18893]: NOQUEUE: reject: RCPT from[]: 554 5.7.1 <[]>: Client host rejected: Access denied; from=<kids_email> to=<my_remote_email> proto=ESMTP helo=<[]>
Jun 4 15:39:39 nirvana postfix/smtpd[18893]: disconnect from[]

my subnet is

My postfix config is:

mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain,
myhostname =
mynetworks = [::1]/128 [fe80::%eth0]/64
mynetworks_style = subnet
myorigin = $mydomain

smtpd_client_restrictions = permit_sasl_authenticated, reject_unknown_client
smtpd_helo_required = yes
smtpd_helo_restrictions = permit_mynetworks
smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, check_client_access hash:/etc/postfix/client_access, reject_unauth_destination
(client access includes

broken_sasl_auth_clients = yes

smtpd_sasl_auth_enable = yes
smtpd_sasl_local_domain = $mydomain
smtpd_sasl_path = private/auth
smtpd_sasl_security_options = noanonymous
smtpd_sasl_tls_security_options = noanonymous
smtpd_sasl_type = dovecot
smtpd_tls_auth_only = yes
smtpd_tls_cert_file = /etc/ssl/certs/dovecot.pem
smtpd_tls_key_file = /etc/ssl/private/dovecot.pem

I have tried the normal commenting out of smtpd_client_restrictions, smtpd_recipient_restrictions, smtpd_tls_auth_only = yes (with postfix restart in between) and it makes no difference. It is almost like there is a gremlin that prevents 'Sydneys-iPad' from sending mail. Has anyone else run into this with certain Apple devices lately? If not any suggestions?

David C. Rankin, J.D.,P.E.
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