Der E-Mail-Austausch mit dem Support der Telekom bleibt unspezifisch:IP=185.130.227.227 - A problem occurred. Ask your postmaster for help or to contact tosa@rx.t-online.de to clarify. (TEM)
2025-06-15, 14:47
Deutsche Telekom E-Mail Engineering Herbert Gründner <postmaster@rx.t-online.de> hat geschrieben: This system has not sent any e-mail to our customers for a long time. For security reasons our systems will only accept e-mails from such IP addresses after a check of setup and information about these systems.
Please give us details about this system and the company using it, tell us all about the sending domain, what type of e-mail will be sent and especially if you or your customer want to send newsletter give us detailed information on how recipients e-mail addresses had been acquired. Who in person is responsible for e-mail sent from this system?
Please be advised that only technically proper configured and very well maintained systems are qualified for a reset of reputation and please see our FAQ section 4.1 (Requirements for smooth access to our e-mail exchanges <https://postmaster.t-online.de/index.en.html#t4.1>): "There must be a domain and website with direct contact information easily deducible from the delivering IP's hostname (FQDN)."
The name / domain in the PTR(*) has to lead(**) to a website which has to show direct contact data(***) of the person responsible for e-mail sent from that system.
(*) http(s)://[www.]hc-bb-international.com and http(s)://[www.]mansion-of-celebs.com
(**) a link or a redirect
(***) In case of a malfunction e-mail is not available. Therefore an e-mail address in the system's domain is not suitable for "quick" electronic contact with the person responsible for sending e-mails from this system.
Kind regards
Herbert Gründner
Deutsche Telekom AG
E-Mail Engineering
Deutsche-Telekom-Allee 9
D-64295 Darmstadt
E-Mail: tosa@rx.t-online.de
2025-06-19, 10:10
AmigoJack hat geschrieben:If by "this system" you mean our host then we have to disagree: over the years we sent emails to @t-online.de again and again - all of them successfully. For the following times (all in UTC) an email was sent and accepted (instead of rejected) - the list is not complete, it just shows selected times to show both the recent past and "a long time" into the past:
2020-02-28 06:56:02
2022-05-26 03:45:01
2024-06-26 10:16:04
2024-07-17 10:09:01
2024-07-31 20:57:07
2024-08-10 23:05:01
2024-08-30 20:02:01
2024-09-06 22:56:01
2024-09-13 21:42:01
2024-09-23 23:58:01
2024-10-13 20:59:01
2024-11-12 22:14:02
2025-01-06 08:54:01
2025-03-03 18:20:02
2025-04-09 17:45:01
2025-04-29 08:53:01
2025-05-15 13:05:02
2025-05-24 15:50:01
2025-06-10 07:18:01That security reason must be new, and formulated like that it would reject ANY email sent to you from ANYBODY until further pledge. Which we can't imagine.For security reasons our systems will only accept e-mails from such IP addresses after a check of setup and information about these systems.If by "this system" you mean our host then it is https://hostkey.com/, a company selling freely configurable hosts. If you mean us: we're 3 persons maintaining the websites found at https://hc-bb-international.com/ and https://mansion-of-celebs.com/ - both are picture boards ("forums") using a phpBB installation, which in return communicates via SMTP to send emails. We're non-profit and no company either.Please give us details about this system and the company using it, tell us all about the sending domain,Like we wrote before: emails are either notifications about activity on a forum, or for completing a registration. We've attached one recent example which could not be sent, but hasn't changed by content over the years.what type of e-mail will be sentNeither we nor our board members want to send newsletters. Email addresses were aquired through the registration to the board: to successfully become a member one has to provide an email address, to which an email will be sent which contains a unique link that must be clicked on, so the board knows the email address is reachable and the one who registered also has access to it (instead of impersonating someone else). So anybody who is willing to sign up already provides us an email address. Members are free to change their email address at any time, going through a similar process (getting a confirmation link) to verify that both old and new email address are in their posession.and especially if you or your customer want to send newsletter give us detailed information on how recipients e-mail addresses had been acquired.We, the owners of the websites. For security reasons we won't give out human names at this point. And don't see how that would help you anyway.Who in person is responsible for e-mail sent from this system?We're bound to how our hoster manages things. While we run the operating system on the host ourselves, the network settings can't be adjusted by us. Over many years we were assigned the IPv4 address 5.39.218.38. Since 2025-04-13 we've got a new IPv4 address assigned, which is 185.130.227.227 (the same which you see in this email's subject). For a couple of days since then we also had an IPv6 addressed assigned without knowing or wanting it - that's why it took us a few days to notice and get our hoster to remove it again. Google Mail rejected emails from us during that time, stating that the reverse lookup wasn't configured correctly (what Google Mail didn't tell us: it insisted on preferring the IPv6 address over the "working" IPv4 one). With no IPv6 address anymore Google Mail accepts both talking to us and receiving emails.Please be advised that only technically proper configured and very well maintained systems are qualified for a reset of reputation
So, what does "very well maintained systems" and "reputation" mean exactly? How do we get back to the old days when T-Online didn't had the slightest problem with us?Interestingly https://postmaster.t-online.de/ fails to have that: a link to an imprint (on the top of the page) is not "direct" (and requesting http://www.telekom.de/impressum as per link leads to HTTP 403). Using a "contact form" (on the bottom of the page) is not "direct" either. We don't tell potential email addresses because we get crawled a lot, so naming any would just end up getting flooded with spam on those (using spaces like in "postmaster @ t-online.de" is surely no counter measure, since it still resembles an address too well). During the registration process, or when being a member, we tell an email address to contact us.please see our FAQ section 4.1 (Requirements for smooth access to our e-mail exchanges <https://postmaster.t-online.de/index.en.html#t4.1>): "There must be a domain and website with direct contact information easily deducible from the delivering IP's hostname (FQDN)."That's double standards: we only had t-online.de as domain to contact you instead of a different domain. And not any person's name to it either. Are you sure you want others to require what you don't provide yourselves? In that case we advise our members to ditch T-Online as an email provider and to use a different one on our boards.The name / domain in the PTR(*) has to lead(**) to a website which has to show direct contact data(***) of the person responsible for e-mail sent from that system.
(*) http(s)://[www.]hc-bb-international.com
http(s)://[www.]mansion-of-celebs.com
(**) a link or a redirect
(***) In case of a malfunction e-mail is not available. Therefore an e-mail address in the system's domain is not suitable for "quick" electronic contact with the person responsible for sending e-mails from this system.
We don't feel like we use emails inadequately: neither content, nor sending frequency is abused. As written before: they all follow RFC 8058, so even if recipients don't use settings on their board accounts to disable getting notification emails they can easily call them off with the unsubscribe link. We've tried to teach our board members over all the years to not mark emails as spam, but instead to revoke their decision of getting notification emails or to reconsider a different media for notifications (f.e. XMPP).
We still don't know why T-Online refuses to accept emails from us - your reply didn't shed any light on our particular problem, but instead only links to generic behavior rules - it even added more uncertainty (like our "reputation" which you keep disclosed).
2025-06-19, 21:08
Deutsche Telekom E-Mail Engineering Herbert Gründner <postmaster@rx.t-online.de> hat geschrieben:Our FAQ section 4.1 (Requirements for smooth access to our e-mail exchanges <https://postmaster.t-online.de/index.en.html#t4.1>) says: "There must be a domain and website with direct contact information easily deducible from the delivering IP's hostname (FQDN)."
According to this http(s)://mansion-of-celebs.com and http(s)://hc-bb-international.com both have to link or redirect to a website which has to show direct contact data(*) of the person responsible for e-mail sent from this system.
(*) Please note: In case of a malfunction e-mail is not available. Therefore an e-mail address in the systems domain is not suitable for "quick" electronic contact to the person responsible for sending e-mails from this system.
2025-06-19, 22:55
AmigoJack hat geschrieben:you repeatedly did not read our email, as you did not address any point or detail we gave you. Especially not the one where we point out that https://postmaster.t-online.de/ itself has not contact possibility outside the t-online.de domain.
Since you are no help at all, we'll advise all our members to boycott DTAG as email provider and phase out allowing addresses of you. We will also inform BNetzA that you violate the network neutrality which you must abide to, especially because of your market rank. Alas, we tried communicating with you and it brought us nowhere - merely wanting an imprint is a German requirement and we have no idea why you extend that to every other nation. Maybe you want to revive your BTX as an isolated application with this strategy...
Next time please refrain from asking for so many details (especially using text templates) when you're not interested in almost any of them. Good luck with your remaining customers.
Das ist (wieder einmal) nicht Eure Schuld! Aber unsere ist es auch nicht - ich hab mich gratis, aber auch umsonst bemüht. Gibt auch andere Webseitenbesitzer, die dieselben Probleme mit E-Mails an die Telekom haben.
Die paar Leute, die das hier lesen: speichert Euch eine E-Mail-Adresse, die nicht der Telekom (aber auch nicht Microsoft) gehört in PKB > Profil > Registrierungs-Details ändern ab. Und überprüft bei der Gelegenheit auch gleich noch in PKB > Einstellungen > Persönliche Einstellungen, ob Ihr überhaupt E-Mail-Benachrichtigungen braucht/haben wollt. Aktuell haben 234 Mitglieder eine E-Mail-Adresse von der Telekom - aber da zum Glück viele Nutzerkonten nur Karteileichen sind fallen viele gar nicht erst auf.
Was, wenn Ihr es nicht ändert? Denkt an Problemfälle: Ihr könnt Euch nicht mehr auf dem Board anmelden und wollt mit uns in Kontakt treten. E-Mail-Adresse finden dürfte kein Problem sein (man hat ja in der Vergangenheit immer welche bekommen) und E-Mail abschicken geht auch noch... aber wie zum Geier sollen wir jemals antworten können, wenn die Deutsche Telekom keine E-Mails von uns mehr akzeptiert? Und da liegt der Hase im Pfeffer: für Euch sieht das aus, als würden wir nie reagieren. Ihr könnt sicher nicht mal aktiv sagen "von dieser Adresse immer erlauben", weil wir schon längst vorher abgefangen werden. Tja.
