On Wed, Jun 1, 2022 at 3:13 PM Sven F. <sven.falem...@gmail.com> wrote: > > Hello, > > I run openSMTPD on openbsd7.1, i was about to send this to openSMTP > mailing list, but i think it s openbsd/chroot/static sendmail related > > I just found out about `filter-dkimsign` , follow up on the man and > installation > instructions . > and have the filter running : > `_dkimsig 61499 0.0 0.0 704 3288 ?? Ip 6:39PM 0:00.03 > /usr/local/libexec/smtpd/filter-dkimsign -d http://XXXXexample.com -s > mydkim -k /etc/mail/dkim/private.rsa.key` > > my /etc/mail/dkim/private.rsa.key is mode 0440 and owned by _dkimsig > > and only apply on the localhost `listen on lo0 filter dkimsign_rsa` > > When the php fpm thingy calls mail ... > > ` Jun 1 18:45:15 XXXX php-fpm-8.1[80816]: mail() on > [/XXXXexample.com/wp-includes/PHPMailer/PHPMailer.php:877]: To: > l...@gmail.com -- Headers: Date: Wed, 1 Jun 2022 16:45:15 +0000 ` > > it just gets stuck forever. > > I cannot find any log error, my clueless guess is the sendmail call is > stuck on a read and the filter somewhat broke the stdout ? > looking for actual clues > > Also the server WAS sending email without the filter. > and using sendmail from the fpm user (did) work(s) > > Another guess: would this be the behavior if a header is not found ? > Maybe it was DNS ? ( /etc/hosts ) > > So after poking around and adding -v to the php sendmail .... i figure > out i broke > the chrooted sendmail, because is create a $chroot/etc/hosts file > > I now unit test the problem like that (i did add ksh to the chroot): > > # chroot -g merci -u merci /var/www /bin/sh -c 'echo HELLO | > /usr/sbin/sendmail -t -v -v -4 -f no-re...@xxxxexample.com. -F TEST3 > -i sven.falem...@gmail.com' > Jun 1 21:02:58 merci smtpd[77228]: 1658fe91a067cec2 smtp connected > address=127.0.0.1 host=localhost > <<< 220 XXXXexample.com. ESMTP OpenSMTPD > >>> EHLO XXXXexample.com. > Jun 1 21:02:58 merci smtpd[77228]: 1658fe91a067cec2 smtp > failed-command command="EHLO XXXXexample.com." result="501 5.5.4 > Invalid command arguments: Invalid domain name" > <<< 501 5.5.4 Invalid command arguments: Invalid domain name > >>> HELO XXXXexample.com. > <<< 501 5.5.4 Invalid command arguments: Invalid domain name > Jun 1 21:02:58 merci smtpd[77228]: 1658fe91a067cec2 smtp > failed-command command="HELO XXXXexample.com." result="501 5.5.4 > Invalid command arguments: Invalid domain name" > sendmail: remote host refuses our greeting > Jun 1 21:02:58 merci smtpd[77228]: 1658fe91a067cec2 smtp disconnected > reason=disconnect > > 'fun' fact i cannot get it to work again > > the host file: > 127.0.0.1 localhost XXXXexample.com. > ::1 localhost > > and in despair i tried > > # match from local for any action "outbound" > match from any for any action "outbound" > > Note: XXXXexample.com. is a placeholder, and resolved from any public > dns, i used reboot a few times. > > I do not understand why deleting /var/www/etc/hosts does not go back > to previous behavior > nor why smtpd refuses EHLO XXXXexample.com. > > Thanks for reading that far, > Please help > > Best
Anyway Trailing dot should be ignored or like properly warned 'problem solved'
