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Tcl

Zip an Email's Attachments into One File

See more Email Object Examples

Demonstrates the Chilkat Email.ZipAttachments method, which replaces all of an email's attachments with a single Zip file attachment having the specified filename. The original attachments are removed and packed into the Zip. This example adds two attachments and zips them into one.

Background: Bundling multiple attachments into a single .zip keeps a message tidy, compresses the payload, and works around recipients or gateways that limit the number of attachments. Note that the filename here (files.zip) names the attachment inside the message — it is not a path on disk. The reverse operation is UnzipAttachments.

Chilkat Tcl Downloads

Tcl

load ./chilkat.dll

set success 0

#  Demonstrates the ZipAttachments method, which replaces all of an email's attachments
#  with a single Zip file attachment having the specified filename.  The original
#  attachments are removed and packed into the Zip.

set email [new_CkEmail]

CkEmail_put_Subject $email "Zip the attachments"

CkEmail_AddStringAttachment $email "a.txt" "first attachment"
CkEmail_AddStringAttachment $email "b.txt" "second attachment"
puts "NumAttachments before = [CkEmail_get_NumAttachments $email]"

#  Replace all attachments with a single Zip attachment named "files.zip".
set success [CkEmail_ZipAttachments $email "files.zip"]
if {$success == 0} then {
    puts [CkEmail_lastErrorText $email]
    delete_CkEmail $email
    exit
}

puts "NumAttachments after = [CkEmail_get_NumAttachments $email]"

delete_CkEmail $email