How to win friends

[Lennart Sorensen]

On Fri, Nov 12, 2010 at 04:31:15PM -0500, James Knott wrote:
> phiscock-g851W1bGYuGnS0EtXVNi6w at public.gmane.org wrote:
>>> A lot don't take + in email address usernames.  + is perfectly legal
>>> according to the RFC.
>>>
>>> + has an interesting effect, at least with sendmail.  For delivering,
>>> sendmail ignores but preserves everything after the +.  You can use
>>> this create variants of your email address and use them to track down
>>> who passed your email address around.  So, for example, you could tell
>>> Future that your email address is peter+future-hcDgGtZH8xPowKkBSvOlow at public.gmane.org  Mail to
>>> that address would be delivered to peter-hcDgGtZH8xPowKkBSvOlow at public.gmane.org  But you would
>>> know that any mail to peter+future-hcDgGtZH8xNBDgjK7y7TUQ at public.gmane.org came because Future
>>> gave out your address.
>>> --
>>>      
>> Very interesting. I might use that...
>>
>> P.
>>
>>    
> I just tried it and it didn't work.  I received a delivery failure  
> notice due to no user.

Does the target site run sendmail?  If so which version?  Is the feature
enabled (it is almost certainly optional)?

-- 
Len Sorensen
--
The Toronto Linux Users Group.      Meetings: http://gtalug.org/
TLUG requests: Linux topics, No HTML, wrap text below 80 columns
How to UNSUBSCRIBE: http://gtalug.org/wiki/Mailing_lists