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Configure Your Mail Client for Secure IMAP and POP

Whenever you connect the mail server to retrieve your email using the protocols "IMAP" or "POP" your password is transmitted over the network. To hide passwords from potential eavesdroppers we have been offering the use of the secure (encrypted) variants of these protocols for some time. We will now stop the support for the unencrypted protocols.

If you are using Mozilla Thunderbird or MS Outlook on a PC maintained by the RZG PC service group, the necessary changes have been made for you already.
In other cases please adapt your mail client settings yourself if not done yet; otherwise you won't be able to retrieve your email after June 20th, 2011

Generally speaking,

  • if you are using IMAP you can either switch on "TLS" (using the standard port 143) or switch on "SSL" (using port 993), whatever your client supports.
  • if you are using POP you can either switch on "TLS" (using the standard port 110) or switch on "SSL" (using port 995), whatever your client supports.
Find some details for serveral mail clients below.

 

Mozilla Thunderbird

Click Tools Account Settings Server Settings IMAP Server.
In Security Settings select SSL.
Do not check the box Use secure authentication!

(The Port should change automatically from 143 to 993 (for IMAP), or from 110 to 995 (for POP)).

 

Microsoft Outlook

For Microsoft Outlook select E-mail Accounts... from the Tools menu. Select View or change existing e-mail accounts on the next page and click on the Next button. Make sure that the RZG account is highlighted and click on the Change button. Clicking on the More Settings... button on this page should bring up an Internet E-mail Settings window with four tabs.
Go to the Advanced tab and make sure that the SSL checkbox is checked as in the following figure. Click OK when you are done.

 

Apple Mail

From the menu select Mail Preferences Accounts Advanced and click the Use SSL button. This should cause the Port: field to automatically change to 993 for IMAP or 995 for POP

 

Eudora

Eudora 5.1 is set by default to use SSL if available. Therefore it should work without change. For more information see here

 

Pegasus

Click iExtra IMAP Profile Edit. Change the Server Port from 143 to 993. Click on Security and activate Via direct SSL connection

 

Pine

To configure pine to use secure IMAP, change the following line in your .pinerc file:

inbox-path={post.rzg.mpg.de/ssl}inbox

If your other mail folders reside on the mail server, too (i.e., if "folder-collections" is not empty), then please also adapt this line:

folder-collections="Mail on post" {post.rzg.mpg.de/ssl}mail/[]

Otherwise pleas leave "folder-collections" empty.

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