Trying to do what I can from my side, but don't think there is much. We are on O365 and have DKIM configured and signing on our emails. We have one vendor that (I believe) is on IronPort (based on the mx1.xxxx.iphmx.com MX record) and when we send to...

Have a lot of users complaining about the Duo notification showing up on their Apple iPhone and immediately going away. They will log into something requiring a Duo push, see it pop up on their phone and by the time they can tap it….it is gone. If th...

Still on the free tier for now, but testing everything before we roll out. Set up an 2016 RRAS server and have L2TP and SSTP working fine. Set up Duo per the instructions at Two-Factor Authentication for Microsoft RRAS VPN connections | Duo Security ...

12 Cisco SG500-52P switches on SW 1.4.5.02 and boot 1.4.0.02. These are all over the offices, some in stacks, some not. One stack does this all the time. Switch is now unusable from web or console.  07-Nov-2016 12:15:11 %HAL_config_poe-A-POEFailDetec...

Have an SG300 with 2x layer 2 connections to a colo. One is 500x500 on port GI50 and one is 100x100 on GI25. When then they are both plugged in, the switch always 'chooses' the 100x100. If I unplug, I lose one packet and the 500x500 kicks in. I set t...