Top Deliverability’s Blog
Spam Resource: Microsoft: Blocking Email from Persistently Vulnerable Exchange Servers
- March 30, 2023
- Posted by: Top Deliverability
- Category: Industry News Spam Resource
Al Iverson just released a insightful story on Spam Resource:
Microsoft recently posted that their Exchange Online servers (which I think also includes Microsoft 365/Office 365, basically any business email cloud-hosted by Microsoft) will soon block mail from old, unpatched Microsoft Exchange servers.Unlike the recent DMARC changes for Microsoft OLC, this likely has no impact to email marketing senders. Few email marketers are using years-old versions of self-hosted Microsoft Exchange for sending email messages.This does likely have a positive impact on the email ecosystem as a whole, though. Setting aside the snark of Microsoft (new, cloud) blocking Microsoft (old, on premise) servers, rejecting mail from servers that are (or could be) engaging in potentially bad acts is a good way to protect users from malware, phishing and spam, and hopefully will also nudge admins of those outdated servers to either upgrade them or shut them down, which will eliminate them as spam and phish vectors, making all of our inboxes
Read more: Microsoft: Blocking Email from Persistently Vulnerable Exchange Servers
Leave a Reply Cancel reply
Email Service Providers Handbook
The most comprehensive “Handbook of Email Service Providers“!
SPAMASSASSIN RULES
All SpamAssassin rules in one place, EXPLAINED!
SMTP COMMANDS
& REPLY CODES
All SMTP/ESMTP commands and reply codes in one place, EXPLAINED!
Free DNS Tool
Check the DNS records of your domain with our free DNS tool.
Deliverability Glossary
The most comprehensive Email Deliverability and Marketing Glossary!