Segue uma lista com os provedores de e-mail, para registar o e-mail do cliente corretamente na Ficha Única:
| @Gmail |
| @Outlook |
| @Yahoo |
| @iCloud |
| @AOL |
| @Zoho |
| @ProtonMail |
| @GMX |
| @Yandex |
| @Mail.com |
| @Tutanota |
| @FastMail |
| @Hushmail |
| @Mail.ru |
| @Runbox |
| @Lycos Mail |
| @Rediffmail |
| @Inbox.com |
| @Excite Email |
| @Hushmail |
| @Yandex.Mail |
| @T-Online Mail |
| @Mailfence |
| @Zimbra |
| @10 Minute Mail |
| @Guerrilla |
| @Disroot |
| @StartMail |
| @SquirrelMail |
| @HordeMail |
| @Rackspace |
| @Mailchimp |
| @Sendinblue |
| @Campaign Monitor |
| @Benchmark Email |
| @Mailjet |
| @GetResponse |
| @AWeber |
| @ConstantContact |
| @SendGrid |
| @Mailgun |
| @Postmark |
| @AmazonSES |
| @SparkPost |
| @ElasticEmail |
| @Mandrill |
| @Emma |
| @ActiveCampaign |
| @iContact |
| @MadMimi |