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If you face the error “Session invalid or expired” while login to the roundcube, you can fix it by following the steps below,

Step 1.

Logon to the server

Step 2.

Edit the following file using editor,


Step 3.

Comment the following line from it,

$rcmail_config['session_lifetime'] = 10;

[Also you can try increase the default value: 10 to a higher value. It’s not recommended to disable the line]

Step 4.

Save the file and try login to roundcube again.

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