I know email management is one of those 'boring' parts of being an entrepreneur, BUT.. It can make or break your margins. Just a heads up, Microsoft made some changes that has impacted both mom and pop businesses and top universities when it comes to sending and receiving emails from Microsoft. Overnight I had 10's of 1000's of emails that were blocked (550 errors)… emails that had been delivered for literally decades – dedicated IP plus sender reputation on point. Spent 3 days troubleshooting but finally fixed it. Have any of you seen this? And if you haven't, still check those SMTP logs and your email providers just to make sure those emails to hotmail / outlook / msn / live are being delivered .. even if you are a reputable sender and have your DKIM / SPF / DMARC aligned. Email channel is still KING arguably, second only to direct traffic.
Blocked emails by Microsoft and email delivery (550 errors)
byu/musicalgenious inEntrepreneur
Posted by musicalgenious
1 Comment
This is a serious wake up call for e commerce. One blocked batch of emails, order confirmations, abandoned cart reminders, or promos, can hit sales hard. Even with DKIM/SPF/DMARC set up, it is worth constantly monitoring SMTP logs and delivery reports, especially for Hotmail/Outlook. Email might feel “boring, but for us, it is basically a revenue engine.