I have changed the size of additional disk in my server. After this job I was testing all work properly. I have checked fuser -m -u /mnt/disk and there was list of users with their processes. I pasted below two examples. I would like to know how and where are created mailboxes "webmaster" which belong to particular domain on the server. This is Perfect Server with newest ISP and Ubuntu 16 LTS. I didn't create [email protected]. Is it some kind of default sendmail behavior? Code: root@s1:/mnt/disk# ps -ef | grep 17050 web105 17050 2124 0 07:26 ? 00:00:00 /opt/php-5.6.30/bin/php-cgi -d open_basedir=/var/www/clients/client41/web105/web:/var/www/clients/client41/web105/private:/var/www/clients/client41/web105/tmp:/var/www/madro.eu/web:/srv/www/madro.eu/web:/usr/share/php5:/usr/share/php:/tmp:/usr/share/phpmyadmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/dev/random:/dev/urandom -d upload_tmp_dir=/var/www/clients/client41/web105/tmp -d session.save_path=/var/www/clients/client41/web105/tmp -d sendmail_path=/usr/sbin/sendmail -t -i -f [email protected] root 18343 7992 0 07:31 pts/0 00:00:00 grep --color=auto 17050 root@s1:/mnt/disk# ps -ef | grep 17099 vmail 17099 1362 0 07:26 ? 00:00:00 dovecot/imap root 19550 7992 0 07:35 pts/0 00:00:00 grep --color=auto 17099 root@s1:/mnt/disk# ps -ef | grep 9468 web28 9468 2124 0 07:00 ? 00:00:19 /opt/php-5.6.30/bin/php-cgi -d open_basedir=/var/www/clients/client11/web28/web:/var/www/clients/client11/web28/private:/var/www/clients/client11/web28/tmp:/var/www/societe.klub-biosfera.pl/web:/srv/www/societe.klub-biosfera.pl/web:/usr/share/php5:/usr/share/php:/tmp:/usr/share/phpmyadmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/dev/random:/dev/urandom -d upload_tmp_dir=/var/www/clients/client11/web28/tmp -d session.save_path=/var/www/clients/client11/web28/tmp -d sendmail_path=/usr/sbin/sendmail -t -i -f [email protected]
Nice but this time wikipedia does not answer to my question. I need to know what is the origin of webmaster default email. How it's created?
The ps output you posted is about PHP processes and not mailboxes and if there is a webmaster mailbox or not depends on if you created a webmaster mailbox or not. If you did not create one, then emails to the webmaster address of your domain will be returned as undeliverable.
Yes, you have right that they are related with php processes but at the end of each is part: sendmail_path=/usr/sbin/sendmail -t -i -f [email protected] sendmail_path=/usr/sbin/sendmail -t -i -f [email protected]-biosfera.pl I didn't create any of these webmaster mailboxes, so it will be undeliverable. But what these two lines means, it's some kind of cronjob or something? I have many of these lines depends on ps output for specific process.
It is setting the default From: address on emails generated by PHP, from the given sites, to webmaster@.
