chunking without pipelining

[Alexis Yushin <alexis@NL.net>]

Hi,

	I had a problem with chunking, because I had pipelining
turned off. The thing is when smtp does bdata_flush, it uses
SS->...pipelining value to pass to smtpwrite. If pipelining is
off, smtpwrite will wait for synchorneous smtp response after
saying BDAT and smtpserver wait for data right after BDAT and
not supposed to say anything before all the data is transferred.
:(
							alexis
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