Blat 323 with error on multiple recipient

"[email protected] [blat]" <[email protected]>
Newsgroups gmane.mail.blat
Message-ID <[email protected]>
I failed to send email to multiple recipient.
 It works well in other version.
 Did I miss anything?
  
  
  PS D:\blat323\full> d:\blat323\full\blat.exe testemail.txt -t "[email protected]","[email protected]"  -s "Testing email
 from report server" -attach d:\blat323\full\blatsample.txt
Blat v3.2.3 (build : Oct 19 2014 15:34:27)
32-bit Windows, Full, Unicode
 Blat saw and processed these options, and was confused by the last one...
    -t [email protected]
    [email protected]
Do not understand argument: [email protected]
Windows console utility to send mail via SMTP or post to usenet via NNTP
by P.Mendes,M.Neal,G.Vollant,T.Charron,T.Musson,H.Pesonen,A.Donchey,C.Hyde
  http://www.blat.net
syntax:
  Blat <filename> -to <recipient> [optional switches (see below)]
   Blat -SaveSettings -f <sender email addy> -server <server addr>
       [-port <port>] [-try <try>] [-profile <profile>]
       [-u <login id>] [-pw <password>]
  or
  Blat -install <server addr> <sender's addr> [<try>[<port>[<profile>]]] [-q]
   Blat -profile [-delete | "<default>"] [profile1] [profileN] [-q]
  Blat -h
 PS D:\blat323\full>
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