Resolve "Check mailman paths on CentOS 8"

Closes #5810

See merge request ispconfig/ispconfig3!1264

Fix visual issue #5820

Closes #5820

See merge request ispconfig/ispconfig3!1262

Centos8 dovecot paths

See merge request ispconfig/ispconfig3!1258

Resolve "Postfix recipient_delimiter not working with catchall defined"

Closes #5814

See merge request ispconfig/ispconfig3!1260

Fix Nginx SSL placeholders in apps_vhost_plugin.inc.php

See merge request ispconfig/ispconfig3!1259

Add missing document_root field to query, fixes #5625

Closes #5625

See merge request ispconfig/ispconfig3!1256

copy configure_postfix settings from installer_base

Closes #5812

See merge request ispconfig/ispconfig3!1255

Merge branch '5813-improve-mysql-database-plugin-code-for-mariadb-10-4-compatibility' into 'develop'

Resolve "Improve mysql database plugin code for MariaDB 10.4 compatibility"

Closes #5813

See merge request ispconfig/ispconfig3!1254

Resolve "[Nightly] in_array() expects parameter 2 to be array"

Closes #5747

See merge request ispconfig/ispconfig3!1253

Allow empty fields for firewall ports (#5809)

Closes #5809

See merge request ispconfig/ispconfig3!1247

Merge branch '5642-fail2ban-fails-to-detect-failed-dovecot-login-attempts-immediately' into 'develop'

move auth_verbose to pop3/imap protocol blocks

See merge request ispconfig/ispconfig3!1248

Merge branch '5642-fail2ban-fails-to-detect-failed-dovecot-login-attempts-immediately' into 'develop'

Resolve "Fail2ban fails to detect failed dovecot login attempts immediately"

Closes #5642

See merge request ispconfig/ispconfig3!1242

This reverts commit 67452af5.

Updated CP user passwords not saved in DB

Closes #5806

See merge request ispconfig/ispconfig3!1241

- don't use the quota-status check on unlisted recipients

Resolve "Dovecot dh.pem warning after ISPConfig install"

Closes #5802

See merge request ispconfig/ispconfig3!1239

Resolve "relayhost change not reflected"

Closes #5805

See merge request ispconfig/ispconfig3!1237

Merge branch '5550-centos-7-installer-clamd-service-restart-message-in-error-when-not-installing-amavisd' into 'develop'

Resolve "CentOS 7 installer clamd service restart message in error when not installing amavisd"

Closes #5550

See merge request !1222