List of disposable email domains ======================== [![Licensed under CC0](https://licensebuttons.net/p/zero/1.0/88x31.png)](https://creativecommons.org/publicdomain/zero/1.0/) This repo contains a [list of disposable and temporary email address domains](disposable_email_blocklist.conf) often used to register dummy users in order to spam/abuse some services. Originally collected to filter new user registration at https://usegalaxy.org and later merged with other lists found online. I cannot guarantee all of these can still be considered disposable but they probably were at one point in time. Allowlist ========= The file [allowlist.conf](allowlist.conf) gathers email domains that are often identified as disposable but in fact are not. Example Usage ============= **Python** ```Python blocklist = ('disposable_email_blocklist.conf') blocklist_content = [line.rstrip() for line in blocklist.readlines()] if email.split('@')[1] in blocklist_content: message = "Please enter your permanent email address." return (False, message) else: return True ``` Available as [PyPI module](https://pypi.org/project/disposable-email-domains) thanks to [@di](https://github.com/di) ```python >>> from disposable_email_domains import blocklist >>> 'bearsarefuzzy.com' in blocklist True ``` **PHP** contributed by [@txt3rob](https://github.com/txt3rob), [@deguif](https://github.com/deguif), [@pjebs](https://github.com/pjebs) and [@Wruczek](https://github.com/Wruczek) 1. Make sure the passed email is valid. You can check that with [filter_var](https://secure.php.net/manual/en/function.filter-var.php) 2. Make sure you have the mbstring extension installed on your server ```php function isDisposableEmail($email, $blocklist_path = null) { if (!$blocklist_path) $blocklist_path = __DIR__ . '/disposable_email_blocklist.conf'; $disposable_domains = file($blocklist_path, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES); $domain = mb_strtolower(explode('@', trim($email))[1]); return in_array($domain, $disposable_domains); } ``` **Ruby on Rails** contributed by [@MitsunChieh](https://github.com/MitsunChieh) In resource model, usually it is `user.rb` ```Ruby before_validation :reject_email_blocklist def reject_email_blocklist blocklist = File.read('config/disposable_email_blocklist.conf').split("\n") if blocklist.include?(email.split('@')[1])    errors[:email] << 'invalid email' return false else return true end end ``` **NodeJs** contributed by [@martin-fogelman](https://github.com/martin-fogelman) ```Node 'use strict'; const readline = require('readline'), fs = require('fs'); const input = fs.createReadStream('./disposable_email_blocklist.conf'), output = [], rl = readline.createInterface({input}); // PROCESS LINES rl.on('line', (line) => { console.log(`Processing line ${output.length}`); output.push(line); }); // SAVE AS JSON rl.on('close', () => { try { const json = JSON.stringify(output); fs.writeFile('disposable_email_blocklist.json', json, () => console.log('--- FINISHED ---')); } catch (e) { console.log(e); } }); ``` **C#** ```C# private static readonly Lazy> _emailBlockList = new Lazy>(() => { var lines = File.ReadLines("disposable_email_blocklist.conf") .Where(line => !string.IsNullOrWhiteSpace(line) && !line.TrimStart().StartsWith("//")); return new HashSet(lines, StringComparer.OrdinalIgnoreCase); }); private static bool IsBlocklisted(string domain) => _emailBlockList.Value.Contains(domain); ... var addr = new MailAddress(email); if (IsBlocklisted(addr.Host))) throw new ApplicationException("Email is blocklisted."); ``` Contributing ============ Feel free to create PR with additions or request removal of some domain (with reasons). Use `$ cat disposable_email_blocklist.conf your_file | tr '[:upper:]' '[:lower:]' | sort -f | uniq -i > new_file.conf` `$ comm -23 new_file.conf allowlist.conf > disposable_email_blocklist.conf` to add contents of another file in the same format (only second level domains on new line without @). It also converts uppercase to lowercase, sorts, removes duplicates and removes allowlisted domains. Changelog ============ * 7/31/17 @deguif [joined](https://github.com/martenson/disposable-email-domains/issues/106) as a core maintainer of this project. Thanks! * 12/6/16 - Available as [PyPI module](https://pypi.org/project/disposable-email-domains) thanks to [@di](https://github.com/di) * 7/27/16 - Converted all domains to the second level. This means that starting from [this commit](https://github.com/martenson/disposable-email-domains/commit/61ae67aacdab0b19098de2e13069d7c35b74017a) the implementers should take care of matching the second level domain names properly i.e. `@xxx.yyy.zzz` should match `yyy.zzz` in blocklist more info in [#46](https://github.com/martenson/disposable-email-domains/issues/46)