EHLO mail
AUTH LOGIN dXNlcjFAbG9jYWxob3N0LmxvY2FsZG9tYWlu
bXlwYXNzd29yZA==
mail from: <user1@localhost.localdomain>
rcpt to: <user1@localhost.localdomain>
data
From: Some User <user1@localhost.localdomain>
To: Some User <user1@localhost.localdomain>
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:52.0)
 Gecko/20100101 Thunderbird/52.2.1
Subject: Test ESMTP Auth LOGIN and remove privacy
testing

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QUIT