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Welcome CompuServe Classic Users

Posted May 21st 2009 11:20AM by the AOL Mail Team

Important Update (June 9, 2009, 4:28pm ET):

We believe we have fixed the majority of issues with the new mail system and have noticed that the system has been stable for the past 12 hours.

We apologize for any inconvenience and appreciate your patience through this migration. If you are experiencing any problems, please call Tech Support at 1-800-848-8990 or email us ( to let us know exactly what is happening and provide as much detail as you can. This will help us to resolve your issue.


As mentioned in earlier communications, the CompuServe Classic service will no longer operate as an Internet Service Provider as of June 30th, 2009. As a result, we have been working on enabling you to retain your CompuServe Classic email address -- by migrating to a new email system. Your email service is available to you at no charge -- but you will need to provide your own Internet access.

Some of the benefits of the new system include:

  • Unlimited storage, which lets you keep as many messages as you want
  • Ability to receive large messages (up to 16MB per message)
  • Industry leading spam and virus protection to help eliminate threats and hassles
  • Open accessibility and compatibility with IMAP and POP3
  • Seamless integration with AIM for instant messaging
Below are answers to frequently asked questions by users that have gone through the email migration process:

1. How do I login to my CompuServe Classic mailbox?

Once you have completed the migration, you will need to go to and login with your full compuserve email address (e.g. and the password you created during the migration.

NOTE: we have fixed the problem with selecting the "Stay signed in until I sign out" option.

2. Which username should I use to login to my CompuServe Classic mailbox?

If you only have a numeric based User ID (e.g. 77777.7777), you will enter the User ID along with "" (e.g. in the "E-mail or Screen Name" field.

However, if you have a friendly name (in addition to your numeric based User ID), you will need to use your friendly name as the username (i.e. Your "friendly name" has been made the primary login name and the numeric based Member ID as an alias (which will allow you to continue to receive email sent to this User ID).

3. If I have a friendly name and a numeric based Member ID, which address will mail that I send from my CompuServe Classic mailbox display from?

If you have a friendly name and a numeric-based User ID, all mail that you send from your CompuServe Classic mailbox will display from the friendly name.

4. If I have a friendly name and a numeric based Member ID, will I continue to receive email that is addressed to my numeric based Member ID?

Yes, you will still receive any email that is addressed to your numeric-based User ID, however when you reply to that email, it will be addressed from your friendly name.

5. I just logged into my new CompuServe Classic mailbox and I don't see any of my old email?

We are working on migrating all your old email. It should be available to you within 24 hours of when you initiated your mailbox's migration.

6. Why is my CompuServe Classic account no longer forwarding email to my CompuServe 2000 account?

The new email system does not support the auto-forwarding of email at this time. We are working to support this feature in the future. You will need to login to your CompuServe Classic mailbox ( to read, reply, and send messages -- or access your mailbox via a POP3 or IMAP client.

7. Can I use a third party email client (Outlook, Thunderbird, etc) to send and receive email to my CompuServe Classic mailbox?

Yes, you can use any third-party email client that supports either POP3 or IMAP. Below are the POP3, IMAP, and SMTP settings that you will need to configure into the third-party email client: ; port 110 (SSL = port 995) ; port 143 (SSL = port 993)

NOTE: The port numbers are entered in a separate field from the POP or IMAP hostname.

When you are setting up your POP3 or IMAP client, you will need to use your complete email address (e.g as your username and use the password you created as part of the migration. You will also need to configure your SMTP, or outbound email connection, to use: ; port 587 (SSL = port 465)

NOTE: This new SMTP server will require you to supply your complete email address (e.g and password to send mail.

8. What is the difference between POP3 and IMAP?

There are two basic ways to set up an email program such as Eudora, Entourage, Thunderbird, or Outlook to check your email. One is to use a POP (POP3: Post Office Protocol) and the other is to use IMAP (IMAP4: Internet Message Access Protocol).

POP3 is a one-way communication path. Your device asks us for data and pulls it from our servers -- but that's it. Things you do on your device have no effect on the server. If you read a message on your phone, then log in to your mailbox, you will see that same message marked as unread.

IMAP is a two-way communication path. Unlike with POP, your devices talk back to our servers and sync your changes automatically with IMAP. When you sign in to your account in a web browser, actions you've taken on your email client or mobile device (like putting a message in a 'work' folder) will also appear in webmail (your message will be in your 'work' folder). This all happens automatically once you set up IMAP, so you don't have to read or sort all your mail twice. This is really helpful when accessing your mailbox from multiple devices.

We recommend that you use IMAP access to ensure that you will always have the same view of your mailbox no matter where you view it -- at home, office, mobile, or anywhere. Below are the advantages to using IMAP:

  • messages are stored on the server are accessible from any computer and webmail anywhere in the world
  • IMAP mail folders remain synchronized with IMP (webmail)
  • sent messages and drafts are also stored on the server
  • IMAP mail is backed up on the server and can be restored
  • ease of migration from a program to a program and from a computer to another computer/location
  • ease of setting up additional computers to check your email, no need to copy anything fro one computer to another

9. Why don't I see the email addresses that are in my CompuServe Classic Client Address Book in this new webmail experience?

The email addresses in your old address book are stored on your local computer, so we have no way to migrate them into the new email system. If you are using either CS3 and CS4 clients, you can find your address book (ADDRBOOK.DAT) in the SUPPORT subdirectory. Make a copy of this file and save it in another location (such as your Desktop). Once you have completed this step, you will need to download a free utility that converts a .DAT file into a .CSV file. There are many of these tools available -- just go to AOL Search and search for "DAT to CSV".

Once you have converted your address book from a .DAT to a .CSV file, you can import the addresses into your new CompuServe Classic mailbox. You will need to login using CompuServe Classic webmail ( and use the instructions on how to import these addresses at our Help Portal.

10. Why can't I set mail filters in webmail?

Our development team is working on making this feature available. We anticipate that this feature will be available in mid July 2009.

We hope you enjoy your new webmail experience.

Rohit Kinra, AOL Mail Team

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