[wp-trac] [WordPress Trac] #49687: wp_mail() - Why is no envelope sender defined?

[WordPress Trac]

#49687: wp_mail() - Why is no envelope sender defined?
-------------------------------------+------------------------------
 Reporter:  vbbp                     |       Owner:  (none)
     Type:  enhancement              |      Status:  new
 Priority:  normal                   |   Milestone:  Awaiting Review
Component:  Mail                     |     Version:  5.4
 Severity:  major                    |  Resolution:
 Keywords:  has-test-info has-patch  |     Focuses:
-------------------------------------+------------------------------

Comment (by SirLouen):

 === Test 3: Using Sendmail for the MTA

 Finally testing with Sendmail. The result is pretty much identical to
 Postfix. Using 8.17.1.9 Sendmail version for this.

 {{{
 Delivered-To: [REDACTED_EMAIL]
 Received: by 2002:a05:6359:6c93:b0:1ff:db44:3f60 with SMTP id
 td19csp1994279rwb;
         Sat, 9 Aug 2025 06:00:07 -0700 (PDT)
 X-Google-Smtp-Source:
 AGHT+IG+g19vr02rDrf1exz6Jm9Yztx63BveRIbzYE9bROJGm0mDIyR8Tnv1y/vTObrepTUe7n3z
 X-Received: by 2002:a2e:be8f:0:b0:333:951f:6dd7 with SMTP id
 38308e7fff4ca-333a2539a32mr19444011fa.3.1754744406990;
         Sat, 09 Aug 2025 06:00:06 -0700 (PDT)
 ARC-Seal: i=1; a=rsa-sha256; t=1754744406; cv=none;
         d=google.com; s=arc-20240605;
 b=CUL1EwzHpWo2N+6C9njiNVv0jVeeMdaeItV0t/zvX/5FEhlZYuuxq5UHhT6t735wr6
 ncXk2c13tVaR6nmdKFT3f2At7Gi5PbflS/fOOLSwal0RFsmMwXzz4+ZI2EaNB0quOksW
 cH20lQtta5lnnyy/+ZLrBlht0S5ij7Bp09EH5r8C0XKZUBKAd3Gfz9Hd1dYItxxifN6I
 AwmuAlxsxGt/6RUjEoRQpHxUngFhm+rBtZI3DvBY04v959mSqAyGweTCybYh76tYbdBR
 GH/B/Rq9ZG4+zBIGHdPIjDLLFqcpzXKGBwVMSotxxkT3mDyQ8luwMSk5CDyOUBNT0y61
          p8Wg==
 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com;
 s=arc-20240605;
         h=content-transfer-encoding:mime-version:message-
 id:from:date:subject
          :to:dkim-signature;
         bh=3qe+NqPQqN3D9HhWZn1o0Cm3dcfT06KA+t3Ct6Z0s2I=;
         fh=LnWiZB+0qsThBew1oCwmWb63UJ40SUAv5hSa6DrXbks=;
 b=XpVculoCygGx2nc9LmFruxnFIRVwSHtdyAUIGnGJGgTP1nz8KhckcjVgjzt/1xNXRA
 W/+AlYFfWnD45zuaCBchEGUMm/hH0f3wlt2gTsd5Cczd2XhmL3pek6AVo3SPalCF6xAf
 3AnpAAfbgVfNlGgDwiE3Cv5Fl7PW27AcznfWdaRSHdWOinZ9fiZbnXMEjLs1RkgmcvMF
 sgOsaM5CO/JonPaH3SN1YPT07OjIWcYkPexOQ9DSmhYqF5i4j2FX7k63IidnwpmaQ1dI
 5BI++75wj3GTLAKYdHW829rVwhPfTxy0VXTw963ZC2oSgjbUR5+ooi1iRShn6otKB/2E
          vmQw==;
         dara=google.com
 ARC-Authentication-Results: i=1; mx.google.com;
        dkim=pass header.i=@[REDACTED_SERVER_HOST] header.s=mail
 header.b=Apx1kRGL;
        spf=pass (google.com: domain of www-data@[REDACTED_SERVER_HOST]
 designates [REDACTED_SERVER_IP] as permitted sender) smtp.mailfrom=www-
 data@[REDACTED_SERVER_HOST];
        dmarc=pass (p=REJECT sp=REJECT dis=NONE)
 header.from=[REDACTED_SERVER_HOST]
 Return-Path: <www-data@[REDACTED_SERVER_HOST]>
 Received: from [REDACTED_SERVER_HOST] ([REDACTED_SERVER_REVERSEHOST].
 [[REDACTED_SERVER_IP]])
         by mx.google.com with ESMTPS id 38308e7fff4ca-
 333b35f4c4dsi4818721fa.595.2025.08.09.06.00.06
         for <[REDACTED_EMAIL]>
         (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
         Sat, 09 Aug 2025 06:00:06 -0700 (PDT)
 Received-SPF: pass (google.com: domain of www-data@[REDACTED_SERVER_HOST]
 designates [REDACTED_SERVER_IP] as permitted sender) client-
 ip=[REDACTED_SERVER_IP];
 Authentication-Results: mx.google.com;
        dkim=pass header.i=@[REDACTED_SERVER_HOST] header.s=mail
 header.b=Apx1kRGL;
        spf=pass (google.com: domain of www-data@[REDACTED_SERVER_HOST]
 designates [REDACTED_SERVER_IP] as permitted sender) smtp.mailfrom=www-
 data@[REDACTED_SERVER_HOST];
        dmarc=pass (p=REJECT sp=REJECT dis=NONE)
 header.from=[REDACTED_SERVER_HOST]
 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple;
 d=[REDACTED_SERVER_HOST]; s=mail; t=1754744406;
 bh=3qe+NqPQqN3D9HhWZn1o0Cm3dcfT06KA+t3Ct6Z0s2I=;
 h=To:Subject:Date:From:From;
 b=Apx1kRGLpHcunom0zjI8YVl4VOa/eMjuq25ObykSAtfBaiAlBe9gX7qy85KM4ECB4
 GQChvrTqMeZCpz8SWU0UNdrENljWK5LIQgn4LNXOok/mTYOt2WwV1UuXOi/Le4bhKe
          URl8OcOOxRMHkK5Cygsb94SblQTk3JxLPtRRes3k=
 Received: by [REDACTED_SERVER_HOST] (Postfix, from userid 33) id
 5CA464169C; Sat,
   9 Aug 2025 13:00:06 +0000 (UTC)
 To: [REDACTED_EMAIL]
 Subject: Health Check – Test Message from https://[REDACTED_SERVER_HOST]
 Date: Sat, 9 Aug 2025 13:00:06 +0000
 From: WordPress <wordpress@[REDACTED_SERVER_HOST]>
 Message-ID:
 <ibPWKa3qJoHj4YjalE0mgtfeIJPR1eGmSGimdllWsEA@[REDACTED_SERVER_HOST]>
 X-Mailer: PHPMailer 6.9.3 (https://github.com/PHPMailer/PHPMailer)
 MIME-Version: 1.0
 Content-Type: text/plain; charset=UTF-8
 Content-Transfer-Encoding: 8bit

 Hi! This test message was sent by the Health Check plugin from WP Testing
 (https://[REDACTED_SERVER_HOST]) on August 9, 2025 at 1:00 pm. Since
 you’re reading this, it obviously works.

 Additional message from admin: Test with Sendmail
 }}}

 Not sure if its worth testing also with Exim, because at this point I
 think we have proved all the point.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/49687#comment:26>
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