On Sep 25, 2009, at 7:12, Charles Marcus <cmar...@media-brokers.com> wrote:

On 9/24/2009, LuKreme (krem...@kreme.com) wrote:
virtual_alias_maps =
  hash:$config_directory/virtual
  pcre:$config_directory/virtual.pcre,
  pcre:$config_directory/virtual_sql.pcre,
  proxy:mysql:$config_directory/mysql_virtual_alias_maps.cf

The first line is local users, the last is the sql lookup for the SQL
users, and the two pcre's are dynamically created to convert
user_extension addresses to user+extension (not recommended).

Why not recommended? The only problem I could see is if the system
allowed valid usernames with an underscore, right?

Charles, why would allowing underscores in the username be a problem? I'm asking because quite curiously my use of /^e[._\/-...@arix.com$/ e+$...@arix.com seems to work for all the characters in the set, _except_ for the underscore...

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