diff options
Diffstat (limited to 'README_FILES/COMPATIBILITY_README')
| -rw-r--r-- | README_FILES/COMPATIBILITY_README | 64 |
1 files changed, 32 insertions, 32 deletions
diff --git a/README_FILES/COMPATIBILITY_README b/README_FILES/COMPATIBILITY_README index 55182b7..aa9e7f6 100644 --- a/README_FILES/COMPATIBILITY_README +++ b/README_FILES/COMPATIBILITY_README @@ -33,17 +33,17 @@ Logged with compatibility_level < 1: * Using backwards-compatible default setting chroot=y -Logged with compatibility_level < 2: - * Using backwards-compatible default setting "smtpd_relay_restrictions = (empty)" + * Using backwards-compatible default setting smtputf8_enable=no + +Logged with compatibility_level < 2: + * Using backwards-compatible default setting mynetworks_style=subnet * Using backwards-compatible default setting relay_domains=$mydestination - * Using backwards-compatible default setting smtputf8_enable=no - Logged with compatibility_level < 3.6: * Using backwards-compatible default setting smtpd_tls_fingerprint_digest=md5 @@ -152,6 +152,34 @@ permanent in main.cf: # ppoossttccoonnff ssmmttppdd__rreellaayy__rreessttrriiccttiioonnss== # ppoossttffiixx rreellooaadd +UUssiinngg bbaacckkwwaarrddss--ccoommppaattiibbllee ddeeffaauulltt sseettttiinngg ssmmttppuuttff88__eennaabbllee==nnoo + +The smtputf8_enable default value has changed from "no" to "yes". With the new +"yes" setting, the Postfix SMTP server rejects non-ASCII addresses from clients +that don't request SMTPUTF8 support, after Postfix is updated from an older +version. The backwards-compatibility safety net is designed to prevent such +surprises. + +As long as the smtputf8_enable parameter is left at its implicit default value, +and the compatibility_level setting is less than 1, Postfix logs a warning each +time an SMTP command uses a non-ASCII address localpart without requesting +SMTPUTF8 support: + + postfix/smtpd[27560]: using backwards-compatible default setting + smtputf8_enable=no to accept non-ASCII sender address + "??@example.org" from localhost[127.0.0.1] + + postfix/smtpd[27560]: using backwards-compatible default setting + smtputf8_enable=no to accept non-ASCII recipient address + "??@example.com" from localhost[127.0.0.1] + +If the address should not be rejected, and the client cannot be updated to use +SMTPUTF8, then the system administrator should make the backwards-compatible +setting "smtputf8_enable = no" permanent in main.cf: + + # ppoossttccoonnff ssmmttppuuttff88__eennaabbllee==nnoo + # ppoossttffiixx rreellooaadd + UUssiinngg bbaacckkwwaarrddss--ccoommppaattiibbllee ddeeffaauulltt sseettttiinngg mmyynneettwwoorrkkss__ssttyyllee==ssuubbnneett The mynetworks_style default value has changed from "subnet" to "host". This @@ -223,34 +251,6 @@ Note: quotes are required as indicated above. Instead of $mydestination, it may be better to specify an explicit list of domain names. -UUssiinngg bbaacckkwwaarrddss--ccoommppaattiibbllee ddeeffaauulltt sseettttiinngg ssmmttppuuttff88__eennaabbllee==nnoo - -The smtputf8_enable default value has changed from "no" to "yes". With the new -"yes" setting, the Postfix SMTP server rejects non-ASCII addresses from clients -that don't request SMTPUTF8 support, after Postfix is updated from an older -version. The backwards-compatibility safety net is designed to prevent such -surprises. - -As long as the smtputf8_enable parameter is left at its implicit default value, -and the compatibility_level setting is less than 1, Postfix logs a warning each -time an SMTP command uses a non-ASCII address localpart without requesting -SMTPUTF8 support: - - postfix/smtpd[27560]: using backwards-compatible default setting - smtputf8_enable=no to accept non-ASCII sender address - "??@example.org" from localhost[127.0.0.1] - - postfix/smtpd[27560]: using backwards-compatible default setting - smtputf8_enable=no to accept non-ASCII recipient address - "??@example.com" from localhost[127.0.0.1] - -If the address should not be rejected, and the client cannot be updated to use -SMTPUTF8, then the system administrator should make the backwards-compatible -setting "smtputf8_enable = no" permanent in main.cf: - - # ppoossttccoonnff ssmmttppuuttff88__eennaabbllee==nnoo - # ppoossttffiixx rreellooaadd - UUssiinngg bbaacckkwwaarrddss--ccoommppaattiibbllee ddeeffaauulltt sseettttiinngg ssmmttppdd__ttllss__ffiinnggeerrpprriinntt__ddiiggeesstt==mmdd55 The smtpd_tls_fingerprint_digest default value has changed from "md5" to |