Jarland Donnell

ARC: The "Trust Me Bro" of Email Authentication

There’s a lot of noise in the email world lately about ARC (Authenticated Received Chain). People talk about it like it’s the missing puzzle piece in email authentication. But after watching it float around in production for years, I’ve come to a pretty simple conclusion: ARC is

Why MXroute Doesn’t Globally Reject DMARC Failures

There’s a question that pops up maybe once a year, and I do mean that literally. Someone asks why we don’t globally reject emails that fail DMARC checks. It’s a fair question. After all, DMARC exists to protect domain owners from spoofing, and on the surface, rejecting

Apple Broke Push Notifications, So We Fixed It (Sort Of)

September 1 2025 UPDATE: Z-Push was not a viable option when we attempted it many years ago. It is not a viable option today. While the instructions below may work for you, for now, intermittent reports of this not working and for no reason that we can fix have continued

Important Update Regarding iOS Push Notifications

Here's a situation we need to discuss. Apple has discontinued an endpoint we were using to generate certificates for iOS Mail push notifications. This endpoint was part of the now-deprecated MacOS Server application, which we and many other providers had been using for this purpose. While our current push notification

The Hidden Dangers of Email Warmup Services: Why They're More Harmful Than Helpful

Email warmup services have gained popularity among businesses looking to improve their email deliverability. However, these services aren't just ineffective—they pose a serious risk to your business's long-term email reputation and deliverability. The False Promise Many business owners fall into a tempting trap: "If I pay these services, they'll

Automating Security: A Better Way to Handle Compromised Email Accounts

I'll be the first to admit when we can do better. For years, we've handled compromised email accounts in a way that, frankly, wasn't great for anyone. When we detected a compromised account, you'd have to wait. Wait for us to be available, wait for us to respond, wait for

Evolving Our Spam Prevention: The Journey to SusRanges

Oct 30, 2024 Edit: As we transition to this system today by spinning down the previous system, we expect inbound spam to increase for a few weeks while we rebuild our data set. Previous data sets cannot be migrated to this, as they were too inconsiderate of important details for