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Re: Allowing @ in user names?

On 10/7/06, Marc Haber <mh+debian-devel@zugschlus.de> wrote:
Is there any potential breakage to allow adduser --force-badname to
create accounts with @ in user names?

The only thing that immediately comes to mind is that of a MTA that
has to deliver mail for this user.   For example, when cron runs a job
and needs to send the output to the owner of the cronjob, there will
be some ambiguity as to whether the part after the @ is part of the
username or in fact a domain name.  This is especially true when
setting MAILTO in a crontab.

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