The last version ("1:1.2.9-1ubuntu6.4") also affected us.
After upgrading today (2011-06-02), it overwrote "smtpd_recipient_restrictions" and "smtpd_sender_restrictions".
The "check_policy_service", "check_recipient_access", "reject_invalid_hostname" , "reject_non_fqdn_hostname" , "reject_non_fqdn_sender" and "reject_non_fqdn_recipient" settings were removed, among others. :-(
/!\ W A R N I N G /!\
The last version ("1:1.2. 9-1ubuntu6. 4") also affected us. recipient_ restrictions" and "smtpd_ sender_ restrictions" .
After upgrading today (2011-06-02), it overwrote "smtpd_
The "check_ policy_ service" , "check_ recipient_ access" , "reject_ invalid_ hostname" , "reject_ non_fqdn_ hostname" , "reject_ non_fqdn_ sender" and "reject_ non_fqdn_ recipient" settings were removed, among others. :-(