Re: [Exim] RFC q? (more then a little off topic)

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Lähettäjä: Paul Overell
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Vastaanottaja: exim-users
Aihe: Re: [Exim] RFC q? (more then a little off topic)
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<E823FA92099E6C4C854CE791DFA1A3D2B61302@???>, Jan
Johansson <jan.johansson@???> writes
>Which RFC (if any?) defines the max length of a E-mail address?
>


RFC2821

4.5.3 Sizes and Timeouts

There are several objects that have required minimum/maximum sizes.
Every implementation MUST be able to receive objects of at least
these sizes. Objects larger than these sizes SHOULD be avoided when
possible. However, some Internet mail constructs such as encoded
X.400 addresses [16] will often require larger objects: clients MAY
attempt to transmit these, but MUST be prepared for a server to
reject them if they cannot be handled by it. To the maximum extent
possible, implementation techniques which impose no limits on the
length of these objects should be used.


   local-part
      The maximum total length of a user name or other local-part is 64
      characters.



   domain
      The maximum total length of a domain name or number is 255
      characters.


   path
      The maximum total length of a reverse-path or forward-path is 256
      characters (including the punctuation and element separators).




Regards
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Paul Overell                                             T U R N P I K E
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