pixelfed/app/Services/EmailService.php

<?php

namespace App\Services;

class EmailService {

	public static function isBanned($email)
	{
		if(filter_var($email, FILTER_VALIDATE_EMAIL) == false) {
			return true;
		}

		$parts = explode('@', $email);

		return in_array(strtolower(last($parts)), array_map('strtolower', self::bannedDomains()));
	}

	public static function bannedDomains()
	{
		return ['0-mail.com', '0815.ru', '0clickemail.com', '0wnd.net', '0wnd.org', '10minutemail.com', '20minutemail.com', '2prong.com', '30minutemail.com', '3d-painting.com', '4warding.com', '4warding.net', '4warding.org', '60minutemail.com', '675hosting.com', '675hosting.net', '675hosting.org', '6url.com', '75hosting.com', '75hosting.net', '75hosting.org', '7tags.com', '9ox.net', 'a-bc.net', 'afrobacon.com', 'ajaxapp.net', 'amilegit.com', 'amiri.net', 'amiriindustries.com', 'anonbox.net', 'anonymbox.com', 'antichef.com', 'antichef.net', 'antispam.de', 'baxomale.ht.cx', 'beefmilk.com', 'binkmail.com', 'bio-muesli.net', 'bobmail.info', 'bodhi.lawlita.com', 'bofthew.com', 'brefmail.com', 'broadbandninja.com', 'bsnow.net', 'bugmenot.com', 'bumpymail.com', 'casualdx.com', 'centermail.com', 'centermail.net', 'chogmail.com', 'choicemail1.com', 'cool.fr.nf', 'correo.blogos.net', 'cosmorph.com', 'courriel.fr.nf', 'courrieltemporaire.com', 'cubiclink.com', 'curryworld.de', 'cust.in', 'dacoolest.com', 'dandikmail.com', 'dayrep.com', 'deadaddress.com', 'deadspam.com', 'despam.it', 'despammed.com', 'devnullmail.com', 'dfgh.net', 'digitalsanctuary.com', 'discardmail.com', 'discardmail.de', 'Disposableemailaddresses:emailmiser.com', 'disposableaddress.com', 'disposeamail.com', 'disposemail.com', 'dispostable.com', 'dm.w3internet.co.ukexample.com', 'dodgeit.com', 'dodgit.com', 'dodgit.org', 'donemail.ru', 'dontreg.com', 'dontsendmespam.de', 'dump-email.info', 'dumpandjunk.com', 'dumpmail.de', 'dumpyemail.com', 'e4ward.com', 'email60.com', 'emaildienst.de', 'emailias.com', 'emailigo.de', 'emailinfive.com', 'emailmiser.com', 'emailsensei.com', 'emailtemporario.com.br', 'emailto.de', 'emailwarden.com', 'emailx.at.hm', 'emailxfer.com', 'emz.net', 'enterto.com', 'ephemail.net', 'etranquil.com', 'etranquil.net', 'etranquil.org', 'explodemail.com', 'fakeinbox.com', 'fakeinformation.com', 'fastacura.com', 'fastchevy.com', 'fastchrysler.com', 'fastkawasaki.com', 'fastmazda.com', 'fastmitsubishi.com', 'fastnissan.com', 'fastsubaru.com', 'fastsuzuki.com', 'fasttoyota.com', 'fastyamaha.com', 'filzmail.com', 'fizmail.com', 'fr33mail.info', 'frapmail.com', 'front14.org', 'fux0ringduh.com', 'garliclife.com', 'get1mail.com', 'get2mail.fr', 'getonemail.com', 'getonemail.net', 'ghosttexter.de', 'girlsundertheinfluence.com', 'gishpuppy.com', 'gowikibooks.com', 'gowikicampus.com', 'gowikicars.com', 'gowikifilms.com', 'gowikigames.com', 'gowikimusic.com', 'gowikinetwork.com', 'gowikitravel.com', 'gowikitv.com', 'great-host.in', 'greensloth.com', 'gsrv.co.uk', 'guerillamail.biz', 'guerillamail.com', 'guerillamail.net', 'guerillamail.org', 'guerrillamail.biz', 'guerrillamail.com', 'guerrillamail.de', 'guerrillamail.net', 'guerrillamail.org', 'guerrillamailblock.com', 'h.mintemail.com', 'h8s.org', 'haltospam.com', 'hatespam.org', 'hidemail.de', 'hochsitze.com', 'hotpop.com', 'hulapla.de', 'ieatspam.eu', 'ieatspam.info', 'ihateyoualot.info', 'iheartspam.org', 'imails.info', 'inboxclean.com', 'inboxclean.org', 'incognitomail.com', 'incognitomail.net', 'incognitomail.org', 'insorg-mail.info', 'ipoo.org', 'irish2me.com', 'iwi.net', 'jetable.com', 'jetable.fr.nf', 'jetable.net', 'jetable.org', 'jnxjn.com', 'junk1e.com', 'kasmail.com', 'kaspop.com', 'keepmymail.com', 'killmail.com', 'killmail.net', 'kir.ch.tc', 'klassmaster.com', 'klassmaster.net', 'klzlk.com', 'kulturbetrieb.info', 'kurzepost.de', 'letthemeatspam.com', 'lhsdv.com', 'lifebyfood.com', 'link2mail.net', 'litedrop.com', 'lol.ovpn.to', 'lookugly.com', 'lopl.co.cc', 'lortemail.dk', 'lr78.com', 'm4ilweb.info', 'maboard.com', 'mail-temporaire.fr', 'mail.by', 'mail.mezimages.net', 'mail2rss.org', 'mail333.com', 'mail4trash.com', 'mailbidon.com', 'mailblocks.com', 'mailcatch.com', 'maileater.com', 'mailexpire.com', 'mailfreeonline.com', 'mailin8r.com', 'mailinater.com', 'mailinator.com', 'mailinator.net', 'mailinator2.com', 'mailincubator.com', 'mailme.ir', 'mailme.lv', 'mailmetrash.com', 'mailmoat.com', 'mailnator.com', 'mailnesia.com', 'mailnull.com', 'mailshell.com', 'mailsiphon.com', 'mailslite.com', 'mailz
	}

}