Comparison of webmail providers
The following tables compare general and technical information for a number of notable webmail providers who offer a web interface in English.
The list does not include web hosting providers who may offer email server and/or client software as a part of hosting package, or telecommunication providers who may offer mailboxes exclusively to their customers.
General
General information on webmail providers and products| Product | Released | Cost | Mailbox storage | Attachment limit | Supported languages | Number of Email Addresses | Conversation threading |
| AOL Mail | 1993 | 25 MB | 54 | 0 | |||
| Fastmail | 1999 | 2 GB to 100 GB | 50 MB | 37 | 600, plus 15 for every user in the account | ||
| Gmail | 2004 | ; $6/user/month on the user's domain | free tier: 15 GB | 25 MB | 71 | 30 | |
| GMX Mail | 1997 | 65 GB, 1.5 GB | 50 MB, 50–100 MB | English, German, Spanish, French | Free: [|2] ProMail: 10 TopMail: 50 | ||
| HEY | 2020 | 100 GB | 300 MB | English | ? | ||
| Hushmail | 1999 | 10 GB | 20 MB per file, total 50 MB per mail | English | ? | ||
| iCloud | 2011 | 5 GB, 50 GB, 200 GB, or 2 TB monthly | 20 MB | 4 | Free: 3 Paid: unlimited through " Hide My Email" | ||
| Kolab Now | 2013 | 2 GB, can purchase more | ? | English | ? | ||
| Lycos | 1997 | 5 GB | 35 MB | English | ? | ||
| Mail.com | 1995 | 65 GB | 30 MB | English, Spanish, French | Free: 11 | ||
| Mail.ru | 1998 | 2 GB | 11 | ? | |||
| Mailbox.org | 2014 | ||||||
| Mailfence | 2013 | 500 MB 5 GB or 20 GB or 50 GB | 10 MB 50 MB | 11 | ? | ||
| Outlook, Hotmail | 1996 2012 | 15 GB | 32 MB | 106 | ? | ||
| Posteo | 2009 | 2 GB storage | 50 MB | 3 | 2 included up to 20 for an additional charge of 0.10 EUR per alias per month | ||
| Proton Mail | 2014 | 500 MB 1 GB 5 to 20 GB | 25 MB | 10 | Free: 1 Plus: 10 Ultimate: 15 | ||
| Rediffmail | 1997 | 25 MB | 11 | ? | |||
| Tuta | 2011 | 1 GB Free and Premium, 10 GB Teams. Can be upgraded to 10 GB, 100 GB, or 1 TB. | 25 MB | 30 | Free: 1 Revolutionary: 15 Legend: 30 | ||
| Yahoo! Mail | 1997 | 20 GB | 25 MB | 27 | Free: 3 Plus: 500 | ||
| Yandex Mail | 2000 | 22 MB per file, total 30 MB per mail | 10 | ? | |||
| Zoho Mail | 2008 | 5 GB "Lite". "Standard": 10 & 15 GB | 20 MB free, 30 MB or 50 MB paid | 16 | ? |
Supported protocols
| Product | POP3 support | IMAP support | SMTP support | JMAP support | Cryptographic protocol support | IPv6 support | EAS support |
| AOL Mail | |||||||
| Fastmail | |||||||
| Gmail | |||||||
| GMX Mail | |||||||
| HEY | |||||||
| Hushmail | |||||||
| iCloud | |||||||
| Kolab Now | |||||||
| Lycos | |||||||
| Mail.com | |||||||
| Mail.ru | |||||||
| Mailbox.org | |||||||
| Mailfence | |||||||
| Outlook, Hotmail | |||||||
| Posteo | |||||||
| Proton Mail | |||||||
| Rediffmail | |||||||
| Tuta | |||||||
| Yahoo! Mail | |||||||
| Yandex Mail | Appears to require phone number to enable IMAP | ||||||
| Zoho Mail |
Digital rights
Verification
How much information users must provide to verify and complete the registration when opening an account :| Product | SMS verification | Secondary email verification |
| AOL Mail | ||
| FastMail | ||
| Gmail | ||
| GMX Mail | ||
| Hushmail | ||
| iCloud | ||
| Laposte.net | ||
| Lycos | ||
| Mail.com | ||
| Mailbox.org | ||
| Mail.ru | ||
| Mailfence | ||
| Outlook.com | ||
| Proton Mail | ||
| Rediffmail | ||
| Seznam.cz | ||
| Tuta | ||
| Yahoo! Mail | ||
| Yandex Mail | ||
| Zoho Mail |
Secure delivery
Features to reduce the risk of third-party tracking and interception of the email content; measures to increase the deliverability of correct outbound messages.Other
Unique features
| Name | Features |
| FastMail | Spam filter; backscatter detection; deletion of selected attachments. Android and iPhone apps. |
| Gmail | Account verification via SMS or voice call in some countries; "Normal" view via Settings; Labels instead of folders; Undo send |
| Laposte.net | spam filter, deletion of selected attachments, address book and calendar/agenda, import/export features for mails, contacts and calendar events, custom signatures for each alias, filters for organizing your emails, holiday mode, mobile app for smartphones, integration with Digiposte. |
| Mailfence | Client-side encryption with email expiration, Digital signatures, Full OpenPGP inter-operability and support, Integrated account keystore, Multiple PGP keypair support, Public keyserver connection, Full reversibility and key revocation, Full email-suite, Shared mailbox and collaboration with group members |
| Outlook.com | One-time password, Mobile alerts, Account verification via SMS or voice call in some countries, Rules, Scheduled Cleanup, Filter to e.g. only see newsletters or Emails from contacts, Recover deleted emails; Key encryption for paid accounts |
| Proton Mail | Client-side encryption, email expiration, automatic encryption for Proton Mail-Proton Mail emails, optional email encryption for messages from Proton Mail to other providers |
| Rediffmail | sign-in via Google, Yahoo!, Facebook, Twitter, Mobile Sync; Indrive. |
| Tuta | Client-side encryption, automatic encryption of mailbox, automatic encryption of emails between Tuta users, optional email encryption for messages from Tuta to other providers |
| Yandex Mail | Email for own domains, scheduled email delivery, SMS verification, sign-in via Twitter, VK, Facebook, Google Profile |
| Zoho Mail | Email Sharing, Folder Sharing, Collaborating with other users by Chat/ Social media for organization, Filters, Schedule and send emails, reminders, Notes, Tasks, Bookmarks and so on. |
Features
| Service Name | Automatic forwarding | Email client access | Client email for other server | Integration with IM service | Domain Name customization | Interface script technique | Virus scanning | Filters out emails with executable attachments | Custom "From:" Address | Address modifiers | Server hosted public keyring | Shared key encryption | Zero-knowledge architecture |
| AOL Mail | AOL Instant Messenger | JavaScript/ Ajax | |||||||||||
| FastMail | HTML/ JavaScript/ CSS/AJAX | Configurable with user filtering rules | |||||||||||
| Gmail | SSL/TLS supported SMTP restricted | Google Talkbeta, AOL Instant Messenger | HTML/ JavaScript/ AJAX | , including.exe files in zip files | Yes, limited. Feature restricted to preconfigured addresses. Addresses not registered in advance with Gmail are blocked. | ||||||||
| Hushmail | HTML/ JavaScript/ AJAX | , unlimited email aliases for paid subscribers | |||||||||||
| iCloud | |||||||||||||
| Laposte.net | SSL/TLS supported | SSL/TLS supported | user can choose between HTML or Ajax | ||||||||||
| Mail.com | Google Talk | HTML/ JavaScript/ AJAX2 | , including.exe files in zip files | ||||||||||
| Mail.ru | ICQ, Custom | HTML/ AJAX | |||||||||||
| Mailfence | , DAVx supported | XMPP | HTML/ AJAX | , including.exe files in zip files | |||||||||
| Outlook.com | Skype, Google Hangouts, Facebook Chat | HTML/ JavaScript/ CSS/AJAX | , including.exe files in zip files | ||||||||||
| Proton Mail | JavaScript/AJAX | ||||||||||||
| rediff | Rediff Bol | JavaScript/ AJAX2 | |||||||||||
| Seznam.cz | SSL/TLS supported | HTML/ JavaScript | |||||||||||
| Tutanota | JavaScript | ||||||||||||
| Yahoo! Mail | SSL/TLS supported | Yahoo! Messenger | HTML/ JavaScript/ CSS/AJAX | , including.exe files in zip files | & only 10 addresses | ||||||||
| Yandex Mail | HTML/ JavaScript/ CSS/AJAX | Configurable or/and if discarded by antivirus | , only from confirmed addresses | ||||||||||
| Zoho Mail | AJAX |