了解垃圾邮件的电子邮件标头

了解垃圾邮件的电子邮件标头

我收到了一封垃圾邮件,其标题如下:

Return-Path: <[SENDER ADDRESS REDACTED]>
Authentication-Results:  kundenserver.de; dkim=pass
 header.i=[SENDER ADDRESS REDACTED]
Received: from mout.kundenserver.de ([212.227.126.134]) by
 mx.kundenserver.de (mxeue002 [212.227.15.41]) with ESMTPS (Nemesis) id
 1Mgh8m-1sOP5R1hKW-00aigk for <[MY ADDRESS REDACTED]>; Wed, 17 Apr 2024
 14:08:09 +0200
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=[SENDER DOMAIN REDACTED];
        s=s1-ionos; t=1713355689; x=1713960489;
        i=[SENDER ADDRESS REDACTED];
        bh=RqJ0zGH0upTTLb80NzGgHLQBiz9TynJ1l4ylQHTPb7w=;
        h=X-UI-Sender-Class:Date:To:From:Subject:Message-ID:MIME-Version:
         Content-Type:cc:content-transfer-encoding:content-type:date:from:
         message-id:mime-version:reply-to:subject:to;
        b=WtrBSlpT4B9dlbUsMmXJWE9WzWbBA9cR4YkTbOFdGnQzOTnJye/Od/MT1PrUbOqg
         PzN4uk1yV2qhJOa0Y7YpN+qlNE79z6UJ+3LQ2RfH6b85zzOIepfA/YZGRKkhz2jZu
         ULsJkaFnv4L/rKLTID/rtoQ87SaCxRY3nhrT7B8zArSucQldpShTNZCf7RQy4HT7q
         NosVBdtyQ8WQRQiPHeaLTK8tzm2/zO1wWYdmtzYZ+4vwOPuIEhI80Ob/OwcJFzXuV
         melsFg/l+ZUYDDpH2cQnv+ZiNe23+9oOSR/KXeC0hGDd2eP/yuqFDwmkEFABo65pX
         j5DuGQ3zzW5v6BiSKw==
X-UI-Sender-Class: 55c96926-9e95-11ee-ae09-1f7a4046a0f6
Received: from vps34457.servebyte.com ([185.24.233.52]) by
 mrelayeu.kundenserver.de (mreue010 [213.165.67.97]) with ESMTPSA (Nemesis)
 id 1MjSLi-1sc83O3rnG-00kyKB for <[MY ADDRESS REDACTED]>; Wed, 17 Apr 2024
 14:08:09 +0200
Date: Wed, 17 Apr 2024 03:08:08 -0900
To: [MY ADDRESS REDACTED]
From: DocuSign <[SENDER ADDRESS REDACTED]>
Subject:
 =?UTF-8?B?RG9jdW1lbnQgdmlhIERvY3VTaWduIGZvckplYW4gLSBXZWRuZXNkYXksIDE3dGggb2YgQXByaWwgMjAyNA==?=
Message-ID: <tmKEYOZxdspKmZ5SlU792Vy9JSAuSngZVuP2swJo4U@3fb3918bc0f67a60525d485f36071039>
X-Priority: 1
MIME-Version: 1.0
Content-Type: multipart/mixed;
 boundary="b1_tmKEYOZxdspKmZ5SlU792Vy9JSAuSngZVuP2swJo4U"
X-Provags-ID: V03:K1:9hFbsOjaW+ukdvRmVTFZ/jKHBoUeNZ2eArkw59o/AWa3XSIJC1w
 4waQhmiPN6yaEZmTUmRrG4h+MhM1NhIlZWGKtDuWcuJeOmmSDFafCzzfwsHNy0Wj7Dpyb83
 YDEu9j9FWvbOgDL+1NFLD4uwyfqarnsJyXRbZjy00RGmWKoElifK9RZ+iy1ToIyW1/mlaIz
 ckBst81NBMdi0/WBVNMqg==
X-Spam-Flag: NO
UI-OutboundReport:
 notjunk:1;M01:P0:A3Fb6+EqJDs=;onCGFW95nG992XQ0qwsjGlWDP02
 EJ2T0k/AmPJps1fUf26Q7FLd0E6AF/mlu2TwHydBcKlutTl/RsYkWK7KuBV1OiU/uSeTTHzPf
 Cddzc7oePgxUgx2VLoRRcM5zgvC9TjMaV1N8nxNc0o3YEXRgj9qDlsq60Y5YUtQotzRnI9UNr
 WKV6rqixAhCgdGcTewBBW97+DIybgc02200QWwmoY81bZJyxiztkChsXdKxzR3FYBk9sQNx72
 lkACQKmzovE/LYHlEAO29Ddya1bUs53dBGqxfqZmATV2g+hRANro64d1QdIbLRXUeOVa/3RTR
 Cyt1pAB3qFyKI/NneoGze/4P+1ONYGD9RBbRpTvz3TyPdmt/k8m9NBCGlPOYV3wdE4wNn9oW+
 lwKOng+maAtdrpgpA7r+r5Q0RCBbFmGSnMMXse8RXcaqwZIA/fl2vLW4b85TBRR1inHPZpBc/
 HUHQTFs0uXHDUdXfEoJvkwRAkNrG4g+45Z2m9V0s+g4QigGwR0IkBXyk+UnDjD/LfzOG/HRc2
 08U+kQFXayhHJfV3DaEqT0/zwyIJyRVo5+G5HDDd9qLT2PFSddNLT0XQ+tNteBoUGd+sA1JOx
 ykPjWv4VGX2D8XpxuLBaFyBj3UY1VGJ4cZPuMvbRWcja7nHmPuKMstEsl25b+tXrh/aXItvva
 rOsN9CziOc4JYA4yCRmCtJQT2WqJ0fwGHncFCR40RLZoYXhtjyqv/flI5lq1PYIFPXJmVuOVY
 eV2HlWgv+W5xS3FWHOpaZXGXeoKDlhMrEU73Z1riAxEHQgwAWO2eyYjdQ4qUuGMezTZ11BQbb
 GgMNloTYiG/vmTo4O5MAj9FJqy7Y76XFTv3gmQRlkeooA1GvV64+bdzZVx3JISq4/h
Envelope-To: <[MY ADDRESS REDACTED]>
X-Spam-Flag: NO
UI-InboundReport:
 notjunk:1;M01:P0:25r+8MrJClE=;D0EFKFS6WtsKj58V8rIIu9KijCIi
 emnDOkaITc6YgIJ7NS8qwx4ksn4OkDkaU8ayvYh6LKDmDrO2mQiBs7cXRC2FA75zIkErQo2Hu
 5PIxodSzfnv86FyBjDC+lh4Jmv45J/fbVJ+5KRuaaZOtFcBLuHXsRqheXrwiKa9JzaVtPn5Xr
 sIWnXQEqrUdn1QXOqjk2jMnZT8fZcfIeZoSAtt/TUAvtkUo8JIENKmRB5g4XgdhAsyUCy1dLe
 RFoV25EhcKmLxdKwDF4jj9V8MvZXBZv6NUQzqY8j3Asyuo4Jyxl8CR20zD2qJ+6Y4w5TFmw1L
 i8JMAiUC6qXaCtECYCKpPHpVNOqkSvhEeNKI6ylEtOzu1qc0egJgBwK5yVdxzolxZEli9ye8Y
 bHHJ7qeUPw+Zo4ROzSWXyV6thsUxvLes58o7nDwHEMi/oK7c+tCSJFYW1h9LTH3u74oeb6nZ0
 QgfUKundjnfW5Vc7rZif3WgJ9RO6CHWyv6KTCCXqycUa9/JoVKywTbUKjXs5jKymLMQ9P0l8Q
 LlaP++63ra8Or//Bt24c0bLEXvROrlURo/aTAbwLA0usGoklsw5ilMrqM8hKHA+5KJcEzQMjr
 xj+PNL95EqrjSJ32WdN7qK5RQ9ItYiQRzKwIWwlHN0DTv4UmJLxlel6SpvnS6vOn5FKWYyg5W
 s3+qycXmyXp2Q6bnyqfOJ8SGQXH1n5FSW8YyIqKQiMChK4dTrSYHoqs/s9+pWQBkLMz2qd0d5
 WFVLyEb0sI1kygJVAFh346H/Q1/qg5wyN+3nm/ZZ0VFlpKRoB0jrnGKFbHvGtwYULfqR2Cmdu
 RWsSKhGg53MqoPd+K5lzNjABJ6g9oi8anq3Gw6pnEj/U2zS3qX03fmU9I8CODiH/Xe9UR9quV
 97Vq90ZAUnyDPrDO8KNIE/FBJRSvmnww+2ukcOItl8m83TfopgXidqg4XcFKDP7Xg8R5oOWtn
 XYQ2nc6EvoXg/X10I0P6ei5n8G1EdTWafBA0EWO0Q7qrzXhff38RzWhvejWO3J47hPQihQi9P
 T4E7YnOFLMthrELvcYINBw8btIJUBtx5FlnEfsvdbtNlGSUgWtr8yRyu/BbsIAsZTdBWri1AY
 tEku2aDzVjv1WPyJy01vLzOJuf5peW9/xYmxPvyt2HZWUCs1emTNtuSVsZxI0J4lECd3kH2Zj
 p1zN4g0kNSxXAa/80oel8M0u6USWfN0EvkJdIIfC/OPMiU7LxdDKNaR5EoMD6lv7VaVqkP2bC
 jlVYJ151sIHATMj8jffQfId2fo9gTsxeqCJK5dARSWpv4TnE3C9j6JFCtTJlIfPiE5bBlbgkj
 pGnCkM64N1ME2pbWZCGAMJXQkyhaTuOoI00xCNw9CQuvyTW7CWlcVROsbYo3p1NVSxbrtPtSU
 T2sKJelaBfIt7nWe5DeP/8kQ8H5fKfGINvoMYE2hmZjdpEBNfxgzBAtIjs+MHDllxgiVfYdxD
 aD/1fUJbomPYIefpDhw/D9l+61w3oqsdAJ5tg9w5I6EzGFbdy9M5unWC+tguPCO5SzUD/r1bH
 ntCCcuj3hkaN9wCHNCQaNEEm6Y+afDhKo6kjDjugtLGWqKpv8t9v9nfXT9+zlvEbo08dwX53q
 q/oefjXhyra0Fm7Rd0NhKHLnM+mkba8mTHllnVdvRA+5+/1FHYRebYDUIS337YQVkry2qdoAI
 U4fT/Sc4gQxZ3++RBUFXECf+jKVyxOxWXzJ3NYE9XLdSmrUTy4R2cQrEDOEAR4jRtkchCkshw
 lNiSqUKX7ovS56pkFfuqJaa7MPKk44uN0XxTh+gacXGk07HmGfJ9sBp0BWRy2qwzjH+K4PNpy
 DqR7QbioXO0b4q/ETIWlV622mNGO0Bx0wK9tqKKeccCLuO534iNJjrd1av9YHDRcflPHc9NBH
 84ro3Vh8+LWnpQ1bvzHntpREr0WD81BSRtcgR41dXqkwWKI4A5XxQ5mnpu4GPIJMLrbymKcbK
 qSrE0m11I7t7pBJLgig9/Zzg0zbudrgRnTrauQ1VCqWzJnikm4mzmrApnie6xXeSwbTD4L5zI
 mnoVHfb9rSSTl3QNTgKOnAiMszzxi4smMHzrFTcnBl0UpTIhNa+LCQ0629AdVB5if4vJp5NyG
 H2HBi+LycxQDZUCOGFtAWQLIltVuYNU0C/jm91Y08oi/5oHHbSVbZVFSubqOBIwUlOG+9b5vN
 X1FyH6gaAnrY3k9NfUbbB5oHw/67kIAHbZtoM7CLV8PnccCLSEjRnE2XTUjJilUXgxBFCEzFd
 zOecwbkttjk7QHBdWgElt1WCSq8hvUO8yczJdz0ElqmZeXJfSMZj9FpPQRxvfMPJ91Vzm5CzR
 voEeszROyuzNlUxZg3Av7uDnVrwp6fEvqFNZ8ojEsPn8sCYwccm9ka9DFnI2YaOTMpbS2+0JV
 iS6FH5mOmSvVR7jnoTZJJgx2grEKhWVRJG99TSQzZAQoWK1fsGCWYqTHEmgMnA+oLm2ts0YE/
 8mSlkvHCE/ibUkVTfalXun6qVyxajzEjj1lMkhJvkZGH5/C6AU2IW0duRWGP8kGHx93Nm4fNY
 7orXN1g0iDdRP2nHXFlSY9eUgUrJWiCnZaGwFFftU+pjoplA4+PSrfIMuO+2AxD/TdNVx4LYc
 jG72FSPHlyuX/B3/NMx9B0H3IbHepY02l5hp2x9sF/od/tfmcUu+SR1iDA7GS7tyyrONoObhJ
 F847uisS7c74fnX2zmi825renIgqYIdoxiz5RHybIg1/MYgeOBut3UqYypT3JJVdVXb61Um8T
 3A5VST8nUFGy86n4QyRlWOvh51rJE2Pjm7Vl7rqVNCGPyxepkj1dhKqdX/UAGOSdKpAW4fujv
 xCSpzpgCjZiCOZo1BuFaxteQgW84dm7c+pCqw5cmTJIQ0bMS+mVrntQSBOhLFG7aCDKSCoyzz
 R/LQL1yAA4IhFklnYHVUkdOBXieoF6KopisOW7IPtpmpheaur4Xz49bXUE8pWMTAAD47B8Cna
 YuRePH8O8+oVF5ntedFZ48NKPmxlF73GT+euIIOsf7AdsSkONv4Yh3+bkBJ6WZEql2gVUxr08
 v/39dSBbfHxRrkBcx8Lh8LVJZMXOUsRx1hADB3kpvW2hGtDPQTxaWI98Cl8bMmeZ855t5Ek0w
 ty+uRp30p960yun8VzOz403Vz3NiCcbXEMWiQzThQDRWnwE6cYx5uBQ0sOl0N21T6BI7lN7Iw
 r2gFW0heHhInKFDiEbREJuHtZ0mWvkMm4eHlWwi3qadbiDBKCzU91PttJV/Sfg4VlTY2Zl/rv
 6FHgwUVHzWcKueDydJA8caePXuJDq11y+WBon/BKWIdXnzCPvJqKlHXvWSBGrLTzowoJpFSi+
 Abfq9T/8mOPFibEfs5LJea9y/g2lftzPSEjUNbJIeXbU2m2Dt7mEcrn8SqfEko5DNHwn/+eWz
 rFbZ2ggG+vRwEu4UQQFx37FUtbHzOsh05rl4UIUp13ABbiqCq2lf6Lp4mwMiUZm5Qb9bVfXmT
 /WBWx9p8JtXODcWWLCLKIzz6xnXRqXw=

我的问题:

  1. UI-InboundReportX-Spam-Flag和标X-Provags-ID头是什么X-UI-Sender-Class?哪些软件会添加它们?
  2. 主要问题:我很困惑,因为一方面,第二个Received:标头表明该标头是从 收到的vps34457.servebyte.com,看起来像是一个可疑的发件人,而另一方面,DKIM 通过了,发件人地址看起来信誉良好。我删除了它,但该域名有一个看起来还不错的网站,它似乎是一家与 IT 无关的小公司。该域名似乎由 IONOS 托管,如s=s1-ionosDKIM 签名标头中所示(注意:我自己的电子邮件也由 IONOS 托管,这可能会造成混淆)。DKIM 似乎告诉我,电子邮件是此人从他们的 IONOS 地址发送的,而不是来自 上的匿名 VPS 的垃圾邮件发送者vps34457.servebyte.com。发生了什么事?

相关内容