We are seeing very long delivery times to mail destined to "hotmail.com" and "msn.com" addresses. This is not limited to our servers as we are seeing similar reports from around the Internet. Either Microsoft's mail servers are very busy, or they have instituted some sort of "throttling" for inbound mail.

The larger the message, the longer the time for delivery - anything larger than a megabyte can take several hours.

If you can avoid sending messages to hotmail or MSN users, please do. Especially if they have large attachments. Do not be surprised if they bounce or timeout.

We will update this post if the conditions improve.