[Tickets #1543] NEW: Lost mail when invalid "To:" address

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Ticket URL: http://bugs.horde.org/ticket/?id=1543
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 Ticket             | 1543
 Created By         | ranaldo at unina.it
 Summary            | Lost mail when invalid "To:" address
 Queue              | IMP
 Version            | HEAD
 State              | Unconfirmed
 Priority           | 3. High
 Type               | Bug
 Owners             | 
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ranaldo at unina.it (2005-03-14 04:49) wrote:

In my current installation if you send a message to
"somebody at .somedomain.com" (note the dot before somedomain.com" IMP accept
the message!
The message whill never will be delivered but user will never get an
undelivery message, the mail will be definitively lost!
In the 3.x version i get the error but it's strange.
Undelivery notification is sent byt the illegal address is "@" and not
"somebody at .somedomain.com" so the user thinks it's a fake DSN and thinks
it's mail is delivered!