Hello
My team can help you fix the issue with wrong characters and check the emails config at email settings.
In area of providing Managed Services we have experience with such technologies as Virtuozzo, different types of virtualization (OpenVZ, KVM, XEN), different distributives of OS Linux / OS Unix / OS MS Windows Server systems, VPN/DNS/IPTables/Firewalls/web servers/mail servers configuration and tuning etc.
In area of web development our main specialization is LAMP stack of technologies (Linux, Apache, MySQL, PHP) but our developers have experience with Python, Node.js and .NET stack of technologies either.