add documentation and example for mail_relay_domain_delete function #6399

Resolve "PHP warnings in Installer on PHP 8.1"

Closes #6398

See merge request !1643

Fix apps vhost tpl symlink

See merge request !1642

Source /etc/profile from cron.sh

See merge request !1640

Resolve "apps vhost template file error in dev"

Closes #6397

See merge request !1641

Resolve "Support PHP 8.X"

Closes #6328

See merge request !1602

Merge branch '6328-support-php-8-x' of git.ispconfig.org:ispconfig/ispconfig3 into 6328-support-php-8-x

# Conflicts:
#   server/lib/classes/letsencrypt.inc.php

Skip rendering and reloading bind if there are no records, fixes #6350

Closes #6350

See merge request !1611

Avoid syslog errors about MySQL/MariaDB "Aborted connections" due to cron script.

Closes #6380

See merge request !1628

Add useful default extensions to sieve require template.  See #6382

See merge request !1630

Replace gentoo.conf.php

See merge request !1631

Fix.

See merge request !1632

Add wildcard path option to IDS whitelist.

Closes #6395

See merge request !1639

Uninstall: Remove dangling symlink for PureFTPd cert which would otherwise prevent re-installation

Closes #6380

See merge request !1626

update german translation

Closes #6391

See merge request !1638

# Conflicts:
#   interface/web/login/index.php

Resolve "Port apps.vhost from install/ to server/"

Closes #6321

See merge request !1592

Merge branch '6314-only-add-mailman-related-config-to-the-postfix-config-if-mailman-is-installed' into 'develop'

Resolve "Only add Mailman related config to the Postfix config if Mailman is installed"

Closes #6314

See merge request !1633

Fixed issue #6389 mail server not configured correctly

Closes #6389

See merge request !1637

Add a default_country config option

Closes #4127

See merge request !1618