The “CBL” Has Blacklisted U.Miami?

Several students have told me that they’ve tried to email me at U.M. but the mail has bounced. At first I was skeptical, since I’m getting email, but one student was kind enough to send me headers, which led me to this CBL Lookup Utility. The CBL is a self-styled “composite blocking list”. They do provide a form for removal, but as I’m not the owner of the machine that has the blocked IP number — it’s upstream from me — I’m not about to try to fill it out.

I reported this to the help desk and they’re “working on it”.

Meanwhile, if mail to me bounces, there is a rarely-used backup: myforename.mysurname@gmail.com (be sure to replace myforename with michael and mysurname with froomkin). I’ll try to check there occasionally.

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