List mails blocked from GMX - web.de > Spamfolder
How can I configure Mailman3 so that Mails from the list will not be blocked by gmx.net I tried to send with the same user (mailman.cf) at my mail server, which will not be blocked by gmx. unfortunately, I get no bounce back message. They do just not appear in the mail folder of gmx.
At web.de they go to the SPAM folder.
On 7/19/23 05:31, itservice--- via Mailman-users wrote:
How can I configure Mailman3 so that Mails from the list will not be blocked by gmx.net I tried to send with the same user (mailman.cf) at my mail server, which will not be blocked by gmx. unfortunately, I get no bounce back message. They do just not appear in the mail folder of gmx.
Unfortunately, there are some ESPs that will silently discard mail without giving any clue as to the reason. I think this is wrong, but there's nothing we can do about it.
At web.de they go to the SPAM folder.
Is your mail server properly configured with a fixed IP and full circle DNS? Is it on any block lists (check at http://mxtoolbox.com/blacklists.aspx)? Are you DKIM signing your outgoing mail? Are you applying DMARC mitigations to your list mail?
All these things are important.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
As Mark writes, MX has fixed IP A record, reverse DNS round-trips with A lookup, stay off RBLs, DKIM sign your mail are absolutely required. Using at least conditional DMARC mitigation is required, too. However, conditional DMARC mitigation won't help with gmx.net, it has the same DMARC policy as web.de:
% host -t TXT _dmarc.gmx.net _dmarc.gmx.net descriptive text "v=DMARC1; p=none; sp=quarantine; rua=mailto:dmarcreport@gmx.net" % host -t TXT _dmarc.web.de _dmarc.web.de descriptive text "v=DMARC1; p=none; sp=quarantine; rua=mailto:dmarcreport@web.de"
The important part is "p=none", which says that GMX does not reject or quarantine *solely* because of a DMARC fail.[1] The conditional DMARC mitigation will *not* be applied for that domain for this reason. However, some sites consider From alignment (domain of DKIM signature = domain of author address in From:) in scoring spam. If GMX does that, unconditional DMARC mitigation may help.
Two additional configurations that may help:
- Authenticated Received Chain (ARC) is a relatively new standard which is used by some of the large American providers, specifically GMail and outlook.com. The basic idea is that your host will validate the digital signature on receipt of the post, add a header field reporting the results, and digitally sign that report. Many receiving hosts will then apply the same trust to your validation report that they do to your signatures. Maybe GMX will do it, too.
- SPF is an older standard than DKIM, which uses the IP address of the source of the incoming connection instead of a digital signature. This may help in some cases, but it's much less important than DKIM signatures nowadays.
As a last resort, you may disable all Mailman features (adding list tags or serial numbers to Subject:, adding header or footer to the body) that invalidate signatures. Unfortunately this may not be legal (some jurisdictions may require that you add instructions on how to leave the list).
Steve
Footnotes: [1] IIRC, the "sp=quarantine" means that some fraction of DMARC failing mail should be quarantined for testing purposes, but the default fraction is 0 so that is ignored.
On 7/19/23 10:45, Stephen J. Turnbull wrote:
% host -t TXT _dmarc.gmx.net _dmarc.gmx.net descriptive text "v=DMARC1; p=none; sp=quarantine; rua=mailto:dmarcreport@gmx.net" % host -t TXT _dmarc.web.de _dmarc.web.de descriptive text "v=DMARC1; p=none; sp=quarantine; rua=mailto:dmarcreport@web.de"
The important part is "p=none", which says that GMX does not reject or quarantine *solely* because of a DMARC fail.[1]
Not exactly. These DMARC records specify policies suggested to be applied by any recipient server to mail From: addresses in these domains. They don't say anything about mail To: addresses in these domains From: addresses in other domains.
Footnotes: [1] IIRC, the "sp=quarantine" means that some fraction of DMARC failing mail should be quarantined for testing purposes, but the default fraction is 0 so that is ignored.
Actually "sp" is subdomain policy and specifies the policy to be applied to mail From: sub-domains of the main domain.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
+1
Already asked both providers why some mails are 1. going to spam 2. going to a black hole 3. are bouncing. After some writing forth and back, they said pretty much nothing.
One thing I clearly found with United Internet is that they will bounce mails, when they are hold for moderation and are only acknowledged after 5-7 days. Then their mail server says ... blabla not corresponding to our policy. For that the support says, that the mail header is wrong/corrupt, which it isn't, but they don't listen (or have no clue what they are talking about / others configured).
If you find any solution, please advice here and those 2 examples, thanks.
I also registered an account with web.de and tried to find out, what led to the SPAM-folder, unfortunately their header looks like this:
X-Spam-Flag: YES UI-InboundReport: junk:10;M01:P0:jgPEANxMfXA=;cj0ZvmLEFaDIs770zHpx99rAJcDCbA 1Y3gNPC5fXQ38fRvWtQZrCuXffBLv+zr7BhZUXmCP5/0gT5HLRRVgHo8DH5v4UYCoLF7BO3sN ZUGVdpDVHe6enTE1YRDQ6choFKxR9D7DsaJzQtwytB/RcKeju85tXl9mnazTlGn8/s5JuN+Yq uv+UmyOykpSy0m8f/LMjfvbVlDszxG0pL9Epk/JE0mrCgV2YuSaU879+YBGcM0SgO/nJNBhIe rJ8KhdN8vFbgwQx02PN4BjwRziPuQVEagiSpoIWhoP6zOT3tQGI+Zm/bKiUcgxdv24VqcoHSN ZzPR7KYZTNbRJEdpIbCoY+FfRVi1psvfx8+4jr+3ev5f2YdaFlme40n7KTzRVNo04h4BN5m4s CfEobF0CsJpxWc2mtcztohmatA1yiCs+Ei6WGW2mxDxHjYV0ksx9eu6BDZDpG84zVa9VBP/5w 0zQshIfVBefL7kksMBFFaAG30p/F8SUNYCDxDXWv3mKx4ALTRWtgaaCA/dfzOUY0h42KZljhZ KaOz2m0AbJAySiiEks9X+IGiTv27zbvhHGu5+SP6xEa79DZ/+OSMBqI1rKShCwQvqG3qMU71c 15ULsComyU4QTR7GzuqVGh5lgRftZOhld9CpcIXcIF4COk6nXRTPgAW9PFeN0t+WJAbDNIlbn C888yLIdj+gpyHkQkgT4PaFSB2tI3J23N1G9qxXxcTN+SJMfZP6x6GFNvR/V06C8w5ZPb5erV yPeOCoSRN8mv802vn8PmEaFMtRsHEYF3Vv/5zDf/VaF6DqgPLow/i1nSiENNRxrd2uAFkK6UQ 1i/v/5swrF3n7miAbZUA/Scu2NgWCjk8+MEI4AkjXWt9PAA0TQR+Tp1j4vRb7fR6zw7tKsYx7 xFv8CjQcDbCW/9GNjeZfpgULIrSIKIcke4Dklr8r5p7L1A9O4ohMDs4xb3iVN17iVoa2kQ7xz tMVIOgDS6L9dzCoS5tUSOdUdd6xzeJPlOTAB6wxv2IRAxPCMdBvdLQjimp+DTdeIDqgYfCMqA Bv8/MeoWjQLsS0sWo34StLj8iVSWWwMEjmXe1XCPN5dhmjQ5FZhgcuYCoKc4tY0Yq+QSQ8m1L HEazh7D4nj2zABI2+3WNgKuKFJRFY/9haJNrw7380Mhs86IHDkyfKv3DW+MUEsKLNgjtToR14 sGA6pzZXIjtnGssp5QiqUBcl0UT0PE3IYUyT4utqY5ltdNcr0nLbdxozqhjlkxkuDoY9fZXWU PoGqzs/ZzT6+1E2nDHgDYU+s9EU6zElM83FPW2apHrq/Fi//uBipfxKCJmWyVIxRd32pcuaRH 6EtYwKEw9FOLvLS7fsXqhQPyzxTnjaUh2ldnndv2btaoqvSceCv5W511S97n72V4t4i804kkR PJ+4RdwsNn+Hmb5j+kIQMt4f/4KWVPxP1yz8bzr7KvfuptMpi/cwxH7uHuJw1aBc1rsV3oDcu 6JHfpVRdqqZjdldtV3teWxhunu1ivroAbMKOh36ZNGO/n8rwPo/UZCS4Np68WFJAXakuOfa4D blkAOFLBT2hTwXIFtRL5fwEuCm556qY7S6RQ9elDco4V4kud/iy8XJ2G2YRFFcWxCwt9q13NZ 0OWmgKU+8u/Qz4DcI4THInnR/eXoPsBKCrFKtjZ0GWJ+0NPkz4ZWuPfgD98YYRVtoszQ5Qa9l IYEOd4QYl44lCAaL7IbYDExja1/xDQ0EwvBTDOQuIqYjokdQWD+z7zaN9A5oYZOnoQgkpOG0I r0zyMzWlbCjLuU6S2erSEyXN8qwdNVE3Q48S4b8o4s9mQPUK5ZsvfEXFdub0zDRLFy9JJfrom IyLKgv2nPKxgKKgIrM+VTOcK4aMUk0aNVifsldpLH/P+FvbT3l2gzTvhFKUs+ZRWSxScOLxDH 5Rzfmou+5JA8sGB+rNvuCVguInKGHylO4+fRFjW8HZ0XZiVxMlSbW8FTwGF7Eo0dTMlCedHIK LOHACSJu+S0VdyeJumaXHGyBV7dWYGoFTVW5Oyf4pg1rh6TEAWXye98U7hSyHgQhMaiIrixkg OTqz4N9s2RpRD4dKrUI7emlHwxemMuok0wgxoyXaSFaTRhfidy5yQXv5exKrO2ANrSSuaRQm9 FIuymlYXT5VSCB9TbaIAIGg3KHXet5TO1qhgaSU8PUi/CKjIl/UYnohq5uQkxxw9s4ACNcD+1 CC13NEoQxr+32LbqQ2cMiPQNAyNBRIgFMm5MqCBFlvrggi+2AHPAX7dhfNjxxvLj/q6CG2ENr /bl/RR4M2XRdxMvMXvthvS6FPBBcPOBMG5tXDmziZYUagg08D+gNHnYYjVTr3F0DOHRHeKKsv 5T8a2G5duY+/ZdpwHC9CM0NWLZqUnjpfaRvA7gHxrmmy2EExjmJD1TJaaktPdDCH4iPWMjdCs 5utOPCFKJ3pm7gOUQQ1g1B7JaenOm3mmqQD70KJXhXiLWk6fKCRH2QZz2SWoG9T1FE6rPFDxc 9meYarhF+v3TzheuUha/KB2xozZC3uWTglm9SaENuSm1S3vAVyc21vl/qx+Ul73iCaHdNpu48 OYgDRlO5s1eQAZ5IQGnPDd9IoIlLxOTI7Lv3LXKC9BZXQOBlp5slPLbFfmDlDDK5YeorOrw6a nRJ0MCrjgfIaQAl15f9WTG6P5bSy/gik5ZaCMeuBnukIufVC7EQRAOdLX/GEmTF3TEqv9gWdS KnOEBC4GuT3mynDLkGXqQGv2iBAMCa6R4ESAtVe8AsQSswKbuCE7G26n1MbdvkxSTuYbGoRo6 8NAqmDxYK6qoMmlkw0O+KZlNIL2d+/tBSIEE9Dm/QXf84Dq6pZjknNVaJNTfTwGwwh4jW53I/ WxBZwZ2NKXdgfkS2xQEOIv1Q26mVPq3EMFR+6t85wJ2WGFJCHIlNsEmGhQHQQP6x7Wr5kmKi3 sIy9jFmowKe6zn2ObYTRitg0crol0OIIo1MtwSSCyrfZ+mtb7lOIOj66JvVcIY66LLxNW1CEx t9Eoy7qS58aSvLg+fkqxG4654vh88+iM5reY9XxAmjsmj+WC4wayd4yfnG0bTkGw4188nszB4 PRaVfMLeSN4l3/VOZUyRTnGi2XORg/HHVhF1RVSNiRbrkyjhFit+Lrn6G2zyCxpS7Iewghgbg T8hyUkzhQVA2VLwWXp3b6lckjbjDQpmCCR3NdfS7Rbu+667Md+UQo3Z7LkwrrTfeoZmzoGNxS pUtp68FJ86iH5DePxvDiTsmrMBqXPtDDRxFFRJN/SpqaKdSCH/UyX/AFn0SFXrx7SeEGEIwBx iSDXKvNnQ2BZ0rR5QAFExx50GrwNQDHYklA7sD3EnEsaRUqDmPT6PVXUs2ukP1Vvai6CCk7fi 6qkAnez0f3cmi6cJjs54NCECVbWBi9SlgQoruZPmJzJHdahK3sgxQJ2bk67Bt9+nNq/lVNMuL JrGyJYnHW5ERYh4iKW9wkolThyxaUwswl/ptN67XssLrKLkAfOgvYOsXjkT8VMYnymI9brosk ajSJQCbUCrzNq5HVI/jSc2eU7LyS8dqKUfKGJ8Ov1QGULZ9V/YAV02W163jG2hUnSQiXy62ZC OFD3F1sy8D1UwjhR/LEmX9t8Srj38NDDAi+HexMIF+Wvi+IVRf5ggSpnzZ6XbIGo380aNWqGS CmSZgzrrb/Jm5fB6Na7pzbzwz+NSSoBqg7usgje8mQv1TTusDqZh6+5JGEChvTPs72O+8oO0X Xrz1WTU83D13xCP9YLmKcWF350fgRwngRnz7WCkIKQ1dtBIjs3N0DxvCSV2OC3w1+JgBhKTBd 6k7uNIc5bYk/qplcKsHISmBcjnpfdQah3toJKY2YUC0wWpqayscf28kMEz4Nojw7Z5wwryvrA MQmO2I+rkU1T7R8cqPxO6tncoyr4XwQhQaDbTJsSdm5I/R1DB+blOY6p5Nnt8hAlX4vLthNk0 LxvyrFKQDcplcoamrtQ1MCTbYm2dhTDF7t4dktEIerI7UeDGbQsmQrTzZurQrlMYZtLClPqZj opfgdwXr4p//8Bf+aZ7Jq7nLO+7N9t2YWexopctICqHS1KoOAzclfjWe8sy17maKJVEbRC94N vbWpOQKn17NnOW3gsweM70aNGcQOg8wAzQmC/l+fg1qH6OrTzGsC8dzRXPqZgX77y7gh6spk1 wRa8RYniweSF4HaVPR2+zvpvJwNptwwI8d4GgH2LKclgQvKeGRW8bvRPdnHgpRgu4hs2g+jbS xov8FfQNu5BTGyXIth67NU9EDT3r9cbeH3N28DX83ewVTw9dn6DrpTc4JubNc01CUjT5mm/eM uaISF/Jxm/ShSj+ZXdvdbU7T5ZOvU4n/8vG3amGzkuHgtEBo87yjM5Ttebneg1VYKAxw9Vr2l NUjAA2ZWo7wvWmblYPgJQDaBpCf//+J55GliqYE3odoHAajsxg++PixiRXPjc4Pg1aZ/ipjmn KuQ3VIRPDW8KMUBJu8cC/s61+Uk89pFiGHi8I9Yjhn+ggO3kQcCbRHfy0F6siG8TKNhZBa5ew 8TJQLMai/DziVFbbl0VZddqcbnVHW2ICPXVumPlJl1j7/k2nfJk+rvWcmxUMN+UDXwsa6LHUU M+JkXGgxBFURfmGxuBJxLE=
Asking the support, they couldn't tell me anything. I just asked again from within the account.
Am 19.07.23 um 14:31 schrieb itservice--- via Mailman-users:
How can I configure Mailman3 so that Mails from the list will not be blocked by gmx.net I tried to send with the same user (mailman.cf) at my mail server, which will not be blocked by gmx. unfortunately, I get no bounce back message. They do just not appear in the mail folder of gmx.
At web.de they go to the SPAM folder.
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participants (4)
-
itservice＠knut-krueger.de -
Jens Günther -
Mark Sapiro -
Stephen J. Turnbull