Microsoft Outlook can not communicate with Postfix

This week I received a incident that someone was unable to send e-mails (it suddenly stopped working) and shortly after that, another incidicent with the same issue was received. In both cases Microsoft Outlook was used as the e-mail client and Postfix was running on the (e-mail)server. TL;DR: this out-of-band patch fixes the issue. The postfix logs did not show any concrete errors: postfix/submission/smtpd[8479]: SSL_accept error from some.rdns.entry[]: lost connection postfix/submission/smtpd[8479]: lost connection after STARTTLS from some.

Microsoft Teams on Linux woes

At work we use Microsoft Teams to communicate. Of course I try to use this natively on Linux, since that is my platform of choice. Today I looked into an issue, that causes me to get an empty pop-up when receiving a call. Which effectively means that I can not answer incoming calls. (TL;DR: was not able to fix it) Obligatory stats: Ubuntu 21.10 with awesome wm, running Microsoft Teams version 1.

ANWB heeft ook uitdagingen met outlook en hotmail

Blijkbaar hebben ze bij de webwinkel van onze geliefde ANWB ook uitdagingen met het versturen van e-mails naar en (Microsoft e-mail adressen): Doet me denken aan mijn eigen uitdagingen met die Microsoft e-mail adressen.

postfix can deliver e-mails again towards Microsoft addresses

Recently I upgraded to my new, freedom-loving, pro-privacy Internet Service Provider Freedom Internet. I was already running a mailserver before I switched: postfix. For years I had no issues sending out e-mails towards other mailservers. After I upgraded though, it seemed I was unable to send e-mail to Microsoft e-mail addresses. I noticed it only after a few months, when I tried to reach someone with an e-mail address.

Microsoft Teams on Linux

For my job I am required to use Microsoft Teams. Preferbly I use it on a Linux desktop using the deb or snap packages (it is great that those are provided). However there are some issues which you should be aware of. Meeting URLs not working TL;DR if you want to be able to join Microsoft Teams meetings using a URL, you should stick with the older version and not update to the newer 1.

Almost 10 minutes I will never get back

Yesterday my morning started with a little green icon in the system tray of my Windows 10 workstation. It was time to reboot to install mandatory (already provided) updates. Managed workstations are fine and I am not one to complain, but I am used to the luxury of Linux. There you just install updates and if you really want (and do not use kexec) you can reboot to activate a newly installed kernel.