On 09.08.2023 at 10:05 Otto J. Makela via mailop wrote: > On 8/7/23 03:06, Al Iverson via mailop wrote:
>> If MS is using IPv6 to send the mail to Google, you might be in an >> extra difficult spot. Not everybody agrees/believes this, but in my >> experience Gmail is more quick to block IPv6-sent mail; they're more >> stringent about what they might let through versus IPv4. I can't >> imagine that's something you can control, but, hey, if I'm wrong and >> it is, it's worth checking. > I concur, Google seems to think that if you are using IPv6 for transport you > must be Teh Master of Teh Internet™, and it'll be trivial for you to get > every single detail right in your messages. Another explanation might be that Google wants to introduce additional security controls without breaking all kind of existing communications. So they enforce those controls primarily for new remote endpoints. When you try to send messages to Google from an IPv4 address that Google has not received connections from before, you might also be subjected to requirements which other servers that send emails from their IP addresses since years do not (yet) have to fulfill. And since most IPv6 addresses did not send emails multiple years ago, they can all be considered new. -- BR Oliver ________________________________ dmTECH GmbH Am dm-Platz 1, 76227 Karlsruhe * Postfach 10 02 34, 76232 Karlsruhe Telefon 0721 5592-2500 Telefax 0721 5592-2777 dmt...@dm.de<mailto:dmt...@dm.de> * www.dmTECH.de<http://www.dmtech.de> GmbH: Sitz Karlsruhe, Registergericht Mannheim, HRB 104927 Geschäftsführer: Christoph Werner, Martin Dallmeier, Roman Melcher ________________________________ Datenschutzrechtliche Informationen Wenn Sie mit uns in Kontakt treten, beispielsweise wenn Sie an unser ServiceCenter Fragen haben, bei uns einkaufen oder unser dialogicum in Karlsruhe besuchen, mit uns in einer geschäftlichen Verbindung stehen oder sich bei uns bewerben, verarbeiten wir personenbezogene Daten. Informationen unter anderem zu den konkreten Datenverarbeitungen, Löschfristen, Ihren Rechten sowie die Kontaktdaten unserer Datenschutzbeauftragten finden Sie hier<https://www.dm.de/datenschutzerklaerung-kommunikation-mit-externen-493832>.
smime.p7s
Description: S/MIME cryptographic signature
_______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
