Я не понимаю, почему почта, что пересылать почту повторно, как спам. На сервере я использую exim и VESTA Control Panel. Вот источник почты:
Delivered-To: emailforforward@gmail.com Received: by 10.107.158.78 with SMTP id h75csp14306ioe; Tue, 1 Sep 2015 14:59:53 -0700 (PDT) X-Received: by 10.112.64.228 with SMTP id r4mr14312689lbs.103.1441144793654; Tue, 01 Sep 2015 14:59:53 -0700 (PDT) Return-Path: <sendermail@gmail.com> Received: from alfa.hostname.com (123-123-123-123.datacenter.com. [123.123.123.123]) by mx.google.com with ESMTPS id z1si17722025lbw.159.2015.09.01.14.59.51 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 01 Sep 2015 14:59:53 -0700 (PDT) Received-SPF: softfail (google.com: domain of transitioning sendermail@gmail.com does not designate 123.123.123.123 as permitted sender) client-ip=123.123.123.123; Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning sendermail@gmail.com does not designate 123.123.123.123 as permitted sender) smtp.mailfrom=sendermail@gmail.com; dkim=pass header.i=@gmail.com; dmarc=pass (p=NONE dis=NONE) header.from=gmail.com Received: from mail-la0-f42.google.com ([209.85.215.42]) by alfa.hostname.com with esmtps (UNKNOWN:AES128-GCM-SHA256:128) (Exim 4.72) (envelope-from <sendermail@gmail.com>) id 1ZWtam-0005pP-Au for info@domain.com; Wed, 02 Sep 2015 00:59:48 +0300 Received: by laeb10 with SMTP id b10so9441190lae.1 for <info@domain.com>; Tue, 01 Sep 2015 14:59:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=znPMRO2Q6GFf5sy8VwAXEJsHQaB1x8k+ht3bzxNhUI4=; b=gZ4Vo8NogOFY14nbTJmdYxAdFmNHmyAPtlzv5GVQXu2TNPEAXF/jl9bZlvJwwveBKF xgop3NxDH1Yj32Uz7RhQMP7DL7Ky/2B5ujvmjZRtPb1zkq/4/k9c2xyp/D5PlaAlKCY4 6Nv5bBrppy6dTb1Aabl8tplY9T/atIJ9aNP05Tt7I7JbWKzrR5LBsz/nFVcDV8a5MH0L 9FHJjQd90m4fsXBR2WbflvcQZllkqJojvgGPS4CN19DQzZgRP9bUIvfgElqvB34ZNvUj JDrTcSfh8Xz1XdiTkesftrc/5Rbq/z0xoC51w2aTGyqG1CIyCU2rcG/HVHZrttz+boJu uFTA== MIME-Version: 1.0 X-Received: by 10.152.184.41 with SMTP id er9mr11827213lac.20.1441144790447; Tue, 01 Sep 2015 14:59:50 -0700 (PDT) Received: by 10.25.30.10 with HTTP; Tue, 1 Sep 2015 14:59:50 -0700 (PDT) Date: Wed, 2 Sep 2015 00:59:50 +0300 Message-ID: <CAL+hCrnSTcvn5+Xr9Q2dHZzq9o4CL6D=GYdcuu39GOS0=i+uKw@mail.gmail.com> Subject: test From: Name Sender <sendermail@gmail.com> To: "domain.com" <info@domain.com> Content-Type: multipart/alternative; boundary=001a11345e364dfdaa051eb6ab05 X-redirected: yes --001a11345e364dfdaa051eb6ab05 Content-Type: text/plain; charset=UTF-8 test --001a11345e364dfdaa051eb6ab05 Content-Type: text/html; charset=UTF-8 <div dir="ltr">test</div> --001a11345e364dfdaa051eb6ab05-- Благодарю вас!
Your SPF record is incorrect
Received-SPF: softfail (google.com: domain of transitioning sendermail@gmail.com does not designate 123.123.123.123 as permitted sender) client-ip=123.123.123.123; Authentication
Then, you should also add reverse DNS (rDNS) for your server's IP address and make it same as SMTP hostname.
If you want forwarding to work, you need to modify the mail. The From field needs to contain an address the forwarding server is authorized to send from. The Reply-to field may contain any address. In your case, that would be the original sender’s address.
However, I have no idea how you’d set this up.