gmail esta mensagem não foi criptografada [fechada]

Question

Acabei de mudar meu site para outro provedor de hospedagem. Eu uso SSL / TLS para segurança de conexão e porta 995. Ele envia minhas mensagens, mas o problema é que o gmail mostra This message was not encrypted red flag.

Entrei em contato com o provedor de hospedagem e eles responderam que o servidor usa criptografia TLS para transportar os emails, mas não criptografa o email em si. Eles dizem que não podem fazer nada.

Isso me deixa confuso, não significa que o uso de criptografia TLS em si criptografe automaticamente a mensagem? Existe alguma maneira de se livrar dessa bandeira vermelha?

tnx!

Editar: Este é o cabeçalho da mensagem

    Delivered-To: [email protected]
    Received: by 10.25.125.70 with SMTP id y67csp120510lfc;
            Fri, 25 Mar 2016 04:39:05 -0700 (PDT)
    X-Received: by ....83 with SMTP id 80mr38822350wma.76.1458905945860;
            Fri, 25 Mar 2016 04:39:05 -0700 (PDT)
    Return-Path: <[email protected]>
    Received: from sip......net ([....153])
            by mx.google.com with ESMTP id g5s......4.39.05
            for <[email protected]>;
            Fri, 25 Mar 2016 04:39:05 -0700 (PDT)
    Received-SPF: pass (google.com: domain of ...rd.com designates 87.76.19.153 as permitted sender) client-ip=....153;
    Authentication-Results: mx.google.com;
           dkim=pass [email protected];
           spf=pass (google.com: domain of [email protected] designates ......153 as permitted sender) [email protected]
    Comment: DomainKeys? See http://domainkeys.sourceforge.net/
    DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
      s=default; d=....com;
      b=YHNywjgHFWNR5FmdxEvGk2/8WNw8AgRe+inDncCSKtz09ftSIrQHqdLxzDvR16JW+AP4g784aIUAV7Y6k1arDA6vAkjHZwC8j8rsJLrhmnsroAlNiKg+oHCqPxMHCs8D7+36G53Sdy6nvhM3Jo4NriI+acTNi9/BeMX4U1LgQ8k=;
      h=Received:Received:To:From:Subject:Message-ID:Date:User-Agent:MIME-Version:Content-Type:Content-Transfer-Encoding;
    DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=....com; h=to:from
        :subject:message-id:date:mime-version:content-type
        :content-transfer-encoding; s=default; bh=H54ykBr5z+w0HlaAcOLIHY
        pgyhk=; b=kLng1/OJTssDS5BDYcgDKuJOfnTOK8sieNSbRyetCGpWCpqjRUdopX
        otwjAPzuLx/aV5JEg6kVf/c7CDC1rV3GaxmieWri0bpmKiHTB+yj1S0glR38RdaD
        AQLE+gV6hofyf5syPp8FXLKe2/gOfpzE0OCedMiEeY6Tho9z01zt0=
    Received: (qmail 33746 invoked by uid 108); 25 Mar 2016 07:39:02 -0400
    Received: from unknown (HELO ?....0.100?) ([email protected]@....124)
      by sipuk......net with ESMTPSA; 25 Mar 2016 07:39:02 -0400
    To: ... ... <[email protected]>
    From: ... <[email protected]>
    Subject: probavam
    Message-ID: <[email protected]>
    Date: Fri, 25 Mar 2016 12:38:52 +0100
    User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101
     Thunderbird/38.7.0
    MIME-Version: 1.0
    Content-Type: text/plain; charset=utf-8; format=flowed
    Content-Transfer-Encoding: 7bit

se tole probam