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-rw-r--r--actionmailer/lib/action_mailer/base.rb7
1 files changed, 3 insertions, 4 deletions
diff --git a/actionmailer/lib/action_mailer/base.rb b/actionmailer/lib/action_mailer/base.rb
index 00b02c746e..444bea95e0 100644
--- a/actionmailer/lib/action_mailer/base.rb
+++ b/actionmailer/lib/action_mailer/base.rb
@@ -208,9 +208,8 @@ module ActionMailer #:nodoc:
# pick a different charset from inside a method with <tt>@charset</tt>.
# * <tt>default_content_type</tt> - The default content type used for the main part of the message. Defaults to "text/plain". You
# can also pick a different content type from inside a method with <tt>@content_type</tt>.
- # * <tt>default_mime_version</tt> - The default mime version used for the message. Defaults to nil. You
- # can also pick a different value from inside a method with <tt>@mime_version</tt>. When multipart messages are in
- # use, <tt>@mime_version</tt> will be set to "1.0" if it is not set inside a method.
+ # * <tt>default_mime_version</tt> - The default mime version used for the message. Defaults to "1.0". You
+ # can also pick a different value from inside a method with <tt>@mime_version</tt>.
# * <tt>default_implicit_parts_order</tt> - When a message is built implicitly (i.e. multiple parts are assembled from templates
# which specify the content type in their filenames) this variable controls how the parts are ordered. Defaults to
# ["text/html", "text/enriched", "text/plain"]. Items that appear first in the array have higher priority in the mail client
@@ -257,7 +256,7 @@ module ActionMailer #:nodoc:
@@default_content_type = "text/plain"
cattr_accessor :default_content_type
- @@default_mime_version = nil
+ @@default_mime_version = "1.0"
cattr_accessor :default_mime_version
@@default_implicit_parts_order = [ "text/html", "text/enriched", "text/plain" ]