Leaving messages on the server

[Merciadri Luca]

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Hello,

When fetching mails with Gnus, my messages are deleted on the server,
but I would like to leave messages on the server, even when they have
been fetched by Gnus.

How can I manage to have such an option, assuming it is possible?

Thanks.
- -- 
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
I use PGP. If there is an incompatibility problem with your mail
client, please contact me.
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