The Barracuda twitter account has been very helpful and responsive to the issue. A few hours ago they tweeted that the problem should have been fixed.
Reports are that listings are resolving and things are getting back to normal. Folks are getting responses to emails to the address provided by Barracuda.
250OK confirms that they’ve seen more than 50% of the Barracuda listings drop off:
I’m sure by now readers have seen the article from Gmail “Spam does not bring us joy — ridding Gmail of 100 million more spam messages with TensorFlow.” If you haven’t seen it, go read it. It’s not often companies write about their filtering philosophy and what tools they’re using to manage incoming bad mail.
Read MoreA number of folks are talking about a significant uptick in Barracuda IP blocks over the last few days. These blocks appear to be affecting wide ranges of IPs across multiple networks.
Read MoreOne of the toughest deliverability problems to deal with is when mail is blocked or going to spam because the filters are working as intended. Often the underlying issue is a lack of permission.
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