by admin | Jun 20, 2025 | IT
When my customer was trying to email an external domain, they would receive an NDR with the error below. Inbound messages from that domain were being received by my customer without an issue. 550 5.7.51 TenantInboundAttribution; There is a partner connector configured...
by admin | Jun 19, 2025 | IT
I ran into an email delivery issue the other day that seems likely to come up here and there. My customer could receive email inbound from a domain of a vendor they do business with, but suddenly could no longer send messages to them outbound. All I had to go on was...
by admin | May 10, 2024 | IT
If you read my previous Kaboom post, you may be wondering why I decided to post on another Dell VRTX. Well, the fact is I’ve still got a few of these out in the field, so they remain relevant to me. This is a another customer’s deployment and I just upgraded them from...
by admin | May 6, 2024 | IT
This post is an archive from my old blog that I had to recover from a backup after InMotion Hosting (never make the mistake of hosting with them, by the way) botched a migration and deleted that site. The post below was from events that occurred around 2018 or so...
by admin | Feb 20, 2024 | IT
“We are consolidating VLANs to simplify the network.” – So said a CIO in a request for me to come in to consult on a LAN “upgrade” project. The idea was to take my design below that ran beautifully for years: Into something like this: Like going back in time Now, for...
by admin | Mar 20, 2023 | IT
Sometimes consultants have a problem saying “no”. Too often things are thrown together to please a customer without regard to “the big picture”. Far worse is poor work simply due to laziness or a lack of time. With the lack of time excuse, it would be good to remember...
