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I am now implementing (server / client) based on IMAP2 protocol RFC 1064 through SSL TCP / IP sockets and can not know how to calculate RFC822.SIZE in FETCH command and without using JavaMail API - IMAP Servers. If possible explanation or way to calculate, thanks.

Ahmad Yhia
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  • What are your messages? Are they files? – Max Jun 23 '22 at 00:32
  • Im export my email messages in (.pst) file format – Ahmad Yhia Jun 23 '22 at 05:02
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    RFC 1064? Really? Most people find 3501 preferable. I don't think anyone here will be able to help you with 1064, that really is obsolete. – arnt Jun 23 '22 at 08:46
  • The questions how to calculate the rfc822.size !! In rfc 1064 and rfc 3501 the fetch command will return the rfc822.size – Ahmad Yhia Jun 23 '22 at 11:34
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    RFC822.SIZE is just the number of bytes in the message – user253751 Jun 23 '22 at 11:53
  • As @user253751 says, calculate what you would send for the RFC822 item (which is just the entire message, headers and all), and take the byte length of that. No parsing required. – Max Jun 23 '22 at 15:03

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