Tcl
Tcl
Add an HTML Alternative Body to an Email
See more Email Object Examples
Demonstrates the Chilkat Email.AddHtmlAlternativeBody method, which adds an HTML alternative body. Combined with a plain-text body, it produces a multipart/alternative email that offers both representations of the same content. This example sets a plain-text body, adds an HTML alternative, and prints the resulting alternative count.
Background: A well-formed HTML email usually ships two versions of the body: a rich HTML version and a plain-text fallback, wrapped in a
multipart/alternative container. The receiving client displays whichever it prefers — modern clients show the HTML, while text-only clients (or spam filters and accessibility tools) use the plain text. Providing both improves deliverability and ensures every recipient can read the message.Chilkat Tcl Downloads
load ./chilkat.dll
# Demonstrates the AddHtmlAlternativeBody method, which adds an HTML alternative body to
# the email. Combined with a plain-text body, this produces a multipart/alternative
# email that offers both representations.
set email [new_CkEmail]
CkEmail_put_Subject $email "Plain-text and HTML alternatives"
# Start with a plain-text body.
CkEmail_SetTextBody $email "This is the plain-text version of the message." "text/plain"
# Add an HTML alternative, creating a multipart/alternative email.
CkEmail_AddHtmlAlternativeBody $email "<html><body><b>This is the HTML version.</b></body></html>"
puts "NumAlternatives = [CkEmail_get_NumAlternatives $email]"
delete_CkEmail $email