Hotmail issues

A number of people, both at ESPs and on the mailops mailing list, are reporting problems at Hotmail. The most common reports are senders getting

Site hotmail.com (65.55.92.152) said in
response to MAIL FROM (452 Out of memory)

during the SMTP session.
There isn’t much senders can do about this. Hotmail is going to have to fix their resource issue. This may be limited to certain mail clusters, so watching the IP addresses reporting this error and avoiding them may help.

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Email marketing OF THE FUTURE!

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All of these announcements cause much consternation in the email marketing industry. Just today there was a long discussion on the Only Influencers list about the new Hotmail filtering. There was even some discussion about why the ISPs were doing this.
I think it’s pretty simple why they’re creating new tools: users are asking for them. The core of these new filters is ISPs reacting to consumer demand. They wouldn’t put the energy into development if their users didn’t want it. And many users do and will use priority inbox or the new Hotmail filtering.
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I’m not sure how actively people will be grabbing Outlook.com addresses, as you can use hotmail.com addresses with the Outlook.com interface. Only time will tell, though, how this affects email marketing and spam filtering.

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