[Rspamd] Enhance SOGo contacts dynmap (#4245)

* [Rspamd] Fix SOGo Contacts Dynmap

1. Lowercase all emails to align with Rspamd
2. Remove dots from gmail.com and change googlemail.com to gmail.com to align with Rspamd per https://github.com/rspamd/rspamd/blob/master/lualib/lua_util.lua#L271-L274

* Update settings.php

Fix case when gmail.com or google.com is stored in contact book not in lowercase

* Update settings.php

Add removing of Tags in emails as Rspamd not count them as part of From