SBG compatibility with ESMTP and BDAT command and CHUNKING.
Hi all,
at the present if I telnet the SBG's 9.x MTAs I do not get the commands BDAT and CHUNKING.
As per rfc 3030 SMTP verb BDAT is developped as an alternative command of "DATA" command.
BDAT, is defined as an alternative to the "DATA" command of [RFC821]. The BDAT verb takes two arguments. The first argument indicates the length, in octets, of the binary data chunk. The second optional argument indicates that the data chunk is the last.
bdat-cmd ::= "BDAT" SP chunk-size [ SP end-marker ] CR LF
chunk-size ::= 1*DIGIT
end-marker ::= "LAST"
Chunking allows original large message bodies to be sent in multiple chunks.
It would be nice to have compatibility with these commands to avoid errors like this:
554 5.6.1 Body type not supported by the Remote Host
regards
Christian
P.S. openiing the idea on behalf of my customer
Comments
Body type not supported issues
Sporadically there are e-mails which get bounced from the Antigen server throwing the below error:
554 5.6.1 Body type not supported by the Remote Host.
While doing a netmon capture and after following a specific TCP stream it was found that the failure was caused due to unsupported ESMTP verbs being used for sending 8 bit BINARY MIME.
While we have seen that SBG actually supports 8 bit MIME, it was suprising to note that the binary data command as well as some of the ESMTP verbs are unsupported on the SBG.
Please assist on this. Need to understand if it is within the roadmap of Symantec to include this in the forthcoming releases.
Regards,
Kunal.
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