Re: [mailop] Outlook.com losing eMail messages and SNDS reporting failures

2023-12-04 Thread Gellner, Oliver via mailop
On 2.12.2023 at 05:37 Randolf Richardson, Postmaster via mailop wrote: > Some of my users have been reporting that eMail messages are getting lost > intermittently when they're sent to users at any internet domain name that > relies on OUTLOOK.COM for its MX. > Our mail server logs confirm that

Re: [mailop] Outlook.com losing eMail messages and SNDS reporting failures

2023-12-03 Thread Slavko via mailop
Dňa 3. decembra 2023 8:58:23 UTC používateľ Thomas Walter via mailop napísal: >I haven't heard about issues like these for a while, but it was also difficult >to recognize them in the past. Unless people expected an email, they didn't >report them as lost. IMO that is expected, one cannot

Re: [mailop] Outlook.com losing eMail messages and SNDS reporting failures

2023-12-03 Thread Thomas Walter via mailop
On 02.12.23 04:36, Randolf Richardson, Postmaster via mailop wrote: Some of my users have been reporting that eMail messages are getting lost intermittently when they're sent to users at any internet domain name that relies on OUTLOOK.COM for its MX. In German universities Microsoft's

Re: [mailop] Outlook.com losing eMail messages and SNDS reporting failures

2023-12-02 Thread Randolf Richardson, Postmaster via mailop
One question that may be worth raising with Microsoft is: If eMail messages aren't getting to their intended receipients that you're hosting eMail for, then how can we know for certain that they weren't delivered to some other recipient's mailbox by mistake?

Re: [mailop] Outlook.com losing eMail messages and SNDS reporting failures

2023-12-02 Thread Jarland Donnell via mailop
I never found anyone of consequence who would agree with me or admit that it happens, but I will continue to swear that this is a feature of Hotmail/Outlook. The first time I identified it I think was in 2013. A customer reported the same behavior from their HostGator VPS (when I worked

[mailop] Outlook.com losing eMail messages and SNDS reporting failures

2023-12-01 Thread Randolf Richardson, Postmaster via mailop
Some of my users have been reporting that eMail messages are getting lost intermittently when they're sent to users at any internet domain name that relies on OUTLOOK.COM for its MX. Our mail server logs confirm that all outbound messages were accepted to those MX's (except for