Wietse Venema <wie...@porcupine.org> wrote: > Michael Grimm: >> Wietse Venema <wie...@porcupine.org> wrote:
>>> Would these commands make a difference (for Postfix 3.7 or 3.8): >>> >>> postconf -P smtp/inet/smtputf8_enable=no >>> postfix reload >> >> Done. Please give me 24/48 hours to respond, because these events >> are not that often ... > > When I delete the postscreen code for smtputf8_enable=yes, then > postscreen 3.7 becomes effectively identical to postscreen 3.6. > > Just setting expectations... Your prediction proved to be correct ;-) No more 'signal 11' messages. Here are two examples with a comparable 'BARE NEWLINE' pattern reported in my first post that didn't crash postscreen: Apr 23 12:07:45 <mail.info> mail.lan postfix/postscreen[61983]: CONNECT from [1.2.3.4]:58878 to [10.2.2.1]:25 Apr 23 12:07:45 <mail.info> mail.lan postfix/dnsblog[61987]: addr 1.2.3.4 listed by domain zen.spamhaus.org as 127.0.0.11 Apr 23 12:07:45 <mail.info> mail.lan postfix/postscreen[61983]: PREGREET 159 after 0.03 from [1.2.3.4]:58878: \026\003\001\000\232\001\000\000\226\003\0030An';\265\235\335\250\344N,%\233Y\305\226\030tMb\024\b\3 Apr 23 12:07:46 <mail.info> mail.lan postfix/postscreen[61983]: BARE NEWLINE from [1.2.3.4]:58878 after \026\003\001\000\232\001\000\000\226\003\0030An';\265\235\335\250\344N,%\233Y\305\226\030tMb\024\b\330=\370\347>\364\217\006F\000\000\032\300/\300+\300\021\300\a\300\023\300\t\300\024\300 Apr 23 12:07:46 <mail.info> mail.lan postfix/postscreen[61983]: NON-SMTP COMMAND from [1.2.3.4]:58878 after CONNECT: ??? Apr 23 12:07:46 <mail.info> mail.lan postfix/postscreen[61983]: DISCONNECT [1.2.3.4]:58878 Apr 23 12:09:49 <mail.info> mail.lan postfix/postscreen[4271]: CONNECT from [10.20.30.40]:48872 to [10.1.1.1]:25 Apr 23 12:09:49 <mail.info> mail.lan postfix/postscreen[4271]: PREGREET 159 after 0 from [10.20.30.40]:48872: \026\003\001\000\232\001\000\000\226\003\003\201\202\v\215\240BC\265R\256\200E\275c%\224Dzu\265\375x Apr 23 12:09:49 <mail.info> mail.lan postfix/postscreen[4271]: cache btree:/var/db/postfix/postscreen_cache full cleanup: retained=26 dropped=1 entries Apr 23 12:09:49 <mail.info> mail.lan postfix/postscreen[4271]: BARE NEWLINE from [10.20.30.40]:48872 after \026\003\001\000\232\001\000\000\226\003\003\201\202\v\215\240BC\265R\256\200E\275c%\224Dzu\265\375xQ\3458[\247\300lCt\327\000\000\032\300/\300+\300\021\300\a\300\023\300\t\300\024\300 Apr 23 12:09:49 <mail.info> mail.lan postfix/postscreen[4271]: NON-SMTP COMMAND from [10.20.30.40]:48872 after CONNECT: ??? Apr 23 12:09:49 <mail.info> mail.lan postfix/postscreen[4271]: DISCONNECT [10.20.30.40]:48872 I do have some questions before offering my help in debugging this further, namely: 1) Is smtputf8_enable=yes essential in email traffic as of today? 2) Is a 'postscreen pid xxxxx killed by signal 11' of any relevance regarding my mail servers? Namely, is there a chance for losing mail? Is there something on my end to do, that might help to debug this issue? Regards, Michael
