Mailcheck.js - check email typos

jQuery Mailcheck plugin (github) - client-side email verification for typos using a predefined list (for example, the most popular email services).

Demo | sorsy demos (jsfiddle)

According to the application (en) of the authors (Kicksend), this plugin increased the number of email confirmations when registering by 50%.


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In order for the plugin to check Cyrillic domains for typos , we rule the weights ( Line 30 ):

var result = Kicksend.mailcheck.suggest(encodeURI(this.val()), opts.domains); 

replace encodeURI(this.val()) with this.val() (important! the encoding must be UTF-8)

Checking:

Option illogical sentences

The plugin uses the search algorithm of the largest common substring , which, in general, copes well with the suggestions of corrections (see the demo), however, there are nontrivial cases:

Input data:
domains: ["ua.com", "ui.com"]
email: user@uo.com

Conclusion: user @ u a .com

If you look at the keyboard, it is obvious that “o” is closer to “i” - another domain - ui.com.

I suggest the habrayusers discuss how to improve the algorithm so that it correctly works out similar typos.

( github issue # 20 )