About XS2Mail

XS2Mail makes it possible to read and write email from any computer with an Internet connection. You can simply use any webbrowser to do this, so you do not have to configure a mail user agent (if available at all) just to check if you have received new mail.

All you need to know is some information on your mailserver. This could be your Internet Service Provider (ISP), your company, or your own server. If your ISP or company is already listed at XS2Mail, you can simply select it and fill out your username and password.

XS2Mail is not intented to be your only mail user agent. This is due to the technology of the World Wide Web. However, XS2Mail offers functionality that is usually missing in other webbased mail applications, or even in dedicated mail user agents.

• Free and unlimited use, without need to signup;
• Extensive support for POP3 and IMAP mailservers;
• Compliant with mail and web standards. As stated in the Conformance section, every part of XS2Mail is designed according to the Internet standards. The same is true for the Web technology. All pages on this site conform to the HTML 4.01 specification of the W3C so the site should work with virtually any browser;
• Customize outgoing mail and other parts to your liking;
• High security:
  • With APOP authentication, your password is never submitted in clear-text to your POP3 server.
  • With SSL (Secure Socket Layer), nothing of the information between your computer and the XS2Mail server can be eavesdropped.
• High privacy: As stated in our Privacy Policy we do whatever we can to prevent others to obtain any information stored about you.
• Message list:
  • Sort in all possible ways;
  • Delete multiple messages;
• Reading mail:
  • Show all headers and customize what headers to show;
  • Colorize quoted text;
  • Show all attached images together with the mail on one page;
  • Show large attachments, with a total mail size of up to 8MB;
  • Show a HTML mail with included images (MHTML). Many pretty news letters and other pretty emails use this format.
• Sending mail:
  • Fields: From, To, Cc, Bcc, Subject, Reply-To;
  • Addressbook;
  • Send multiple attachments, with a total size up to 4MB;
• IMAP offers additional features:
  • Open, delete, rename, create and (un)subscribe mailboxes;
  • Copy and move messages between mailboxes;
  • Keep deleted mail in a trashbox;
  • Store sent mail in another mailbox;
  • Postpone mail to resume at a later time;
  • Toggle read/unread and flagged/unflagged status of messages.

Your username and password are submitted only at the time you log on. During your session, this information is temporarly remembered by XS2Mail (see our Privacy Policy regarding this).
At every request (such as viewing a message), however, XS2Mail will log in at your mailserver to fetch data. If your mailserver supports APOP authentication, your password is sent in encrypted form.
To encrypt the first part (from user to XS2Mail), you must log in using our secure (SSL) form. If you do so, nothing (nor your username/password, nor anything of what emails you read) of the data can be read by other people.

XS2Mail was designed to conform to all Internet Standards concerning internet mail. This means that it will correctly interpret all content generated by programs that also support these standards. XS2Mail will also generate content that is required and recommended by these standards.
Specifically, it was designed to conform to the following standards:

• RFC 2822 "Internet Message Format", meaning it will also interpret all contents allowed by RFC 822 "Standard for ARPA Internet Text Messages";
• RFC 2045 "Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet Message Bodies";
• RFC 2046 "Multipurpose Internet Mail Extensions (MIME) Part Two: Media Types";
• RFC 2047 "Multipurpose Internet Mail Extensions (MIME) Part Three: Message Header Extensions for Non-ASCII Text";
• RFC 2112 "The MIME Multipart/Related Content-type";
• RFC 2368 "The mailto URL scheme";
• RFC 2183 "Communicating Presentation Information in Internet Messages: The Content-Disposition Header Field".
• RFC 2392 "Content-ID and Message-ID Uniform Resource Locators";

The following Internet Standards may be included in the near future:

• RFC 2557 "MIME Encapsulation of Aggregate Documents, such as HTML (MHTML)";
• RFC 2231 "MIME parameter Value and Encoded Word Extensions: Character Sets, Languages, and Continuations";
• RFC 2646 "The Text/Plain Format Parameter".

Please note that while we made every effort to conform to these standards, there may be bugs in the implementation. Please inform us if you observe incorrect behaviour and we will fix this as soon as possible.

Because the XS2Mail server is available for public use, we have to put in some limitations and functionality that might decrease your anonymity.

• You can send up to 10 messages per day. (Not when using the Premium Service)
• You can send each message to up to 100 recipients.
• All messages you sent have a short note below it indicating that this message was sent through this service. (Not when using the Premium Service)
• Outgoing messages contain the IP address and hostname of the machine you are currently using in the mail headers.
• You must supply a valid and existent mail address in the Preferences area. If you change this From address in the Compose area, a "Sender" header field with your real address (as specified in the Preferences area) is added to the message.
• When we detect abuse of this service, we will deny you access to our service and will contact your ISP or company.