Why not just have it be a meta test that doesn't trigger if it contains "sch"? I realize that cuts out things like tjmkln...@fakeemail.com, but it would catch tsjmhw...@fakeemail.com, so maybe a bit better in both catch rate and false positives?
On Mon, Nov 20, 2017 at 8:03 AM, Jens Schleusener < jens.schleuse...@t-online.de> wrote: > On Sun, 19 Nov 2017, Bill Cole wrote: > > On 19 Nov 2017, at 17:11 (-0500), Mark London wrote: >> >> Also, 5 consonants in a row, is unlikely. >>> >> >> Well, F. W. Nietzsche never had kids, but I don't think the surname is >> extinct. I'm aware of multiple people with the surname Pietschmann. There >> is also a common practice of using a first initial and surname as a >> username and many Germanic surnames starting with sch[mlr], so I expect >> that 5 consonants in an email address local-part where 'sch' are the middle >> 3 characters are quite common. >> > > Although not used currently I had formerly such an assigned accountname > (jschleus). Since I think the avoiding of FPs should take priority over > that of FNs I "vote" for the omitting "s". > > Maybe it would be a "compromise" to add another regex with at least the > "s" included but 6 required consonants like > > [bcdfgjklmnpqrstvwxz]{6} > > Jens > -- - Markus