From: COMPANYNAME | =?iso-8859-2?q?us=B3ugi?= <sender@sender_domain.tld>
To: receipent@receipent_domain.tld
Subject: =?utf-8?B?UkU6IFtFWFRFUk5BTF0gUmU6IExvcmVtIElwc3VtIC8=?= =?utf-8?Q?40_one?=

Test message