Using external login

[blu3m3]

Hy . I'm using an external login script to acces webmail. It works perfect but when someone press back button from internet explorer it goes to another page and if he tries to login again he can't for a couple of minutes. Can someoune tell me how can i fix it?

[hahni]

Can you send me your external login-html-source, please? I'm using ISPConfig and my login-source doesn't work

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http://mailserver.domain.de:81/roundcubemail/index.php" target="_blank">

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