hi all I use dovecot for smtp authentication this works ok for thunderbird and for outlook express but not for apple'mail client.

my config is as follow

postfx main.cf

. . #authentication smtpd_sasl_auth_enable = yes #smtpd_sasl_local_domain = $myhostname smtpd_sasl_exceptions_networks = $mynetworks smtpd_sasl_security_options = noanonymous broken_sasl_auth_clients = yes smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth # TLS parameters . . Dovecot dovecot.conf

ssl_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem ssl_key_file = /etc/ssl/private/ssl-cert-snakeoil.key mail_location = maildir:/var/vmail/%d/%u/Maildir mail_extra_groups = mail first_valid_uid = 5000 last_valid_uid = 5000 maildir_copy_with_hardlinks = yes disable_plaintext_auth = no mail_debug = no dotlock_use_excl=yes protocols = imap pop3 protocol imap { mail_plugins = quota imap_quota imap_client_workarounds = outlook-idle delay-newmail } protocol pop3 { mail_plugins = quota pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xu%08Xv } protocol lda { postmaster_address = support@oc3.fr mail_plugins = quota log_path = /var/log/dovecot-deliver.log info_log_path = /var/log/dovecot-deliver.log } auth default { mechanisms = plain login passdb sql { args = /usr/dovecot/etc/sql.conf } # userdb prefetch { # } userdb sql { args = /usr/dovecot/etc/sql.conf } user = nobody socket listen { master { path = /usr/dovecot/var/run/dovecot/auth-master mode = 0660 user = vmail group = mail } client { path = /var/spool/postfix/private/auth mode = 0660 user = postfix group = mail } } } dict { } plugin { }

Thanks