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Re: 4yz Temporary Rejections is part of the SMTP Protocol

2011-10-28 01:52:41

Robert A. Rosenberg wrote:

At 19:25 -0400 on 10/27/2011, Hector Santos wrote about Re: 4yz Temporary Rejections is part of the SMTP Protocol:

But we don't any think in SMTP that comes comes to parsing text for
anything, as far I   think of right now.

I beg to differ. It is my impression that when you attempt to send a message you can send an optional message size. This size information is scanned and used to short circuit the upload attempt if this will exceed the max attachment size or (possibly) if this will trigger a mailbox size exceeded condition. I may be wrong but it seems that this is an area where some scanning may be being done to improve processing (sending a too large attachment can thus be detected BEFORE DATA not at end of DATA time).

First please allow me to correct my statement:

   With the exception of extended status codes, I don't think SMTP comes
   close to parsing text for anything else, as far I am aware of.

You're right. We have logic for reading extended text information in MAIL FROM and I believe RCPT TO in some areas, but this is the client command. Not the server response.

Do we have methods out there, outside of the reading optional server numeric extended status codes, to parse the remaining text in server responses?



Hector Santos