Ray_Net wrote:
I have just done a test:
With the same picture 75Kb ...
I attached this picture at a plain-text mail - length of this plain-text
mail is 104 KB
I copy/paste this picture in an html mail sent if both format- length of
this html mail is 58,2 KB
Both mails contains only "TEST" in the body.
The subject of the plain-text mail is: PLAIN-TEXT-test jpg attached 75Kb
The subject of the html mail is: HTML-Test
So the biggest part of those two mails is the picture.
75Kb is transmitted with a 104KB plain-text mail.
75Kb is transmitted with a 58.2KB htlm mail.
What is the "magic" feature who construct an html mail smaller than a
plain-text one ?
Attaching a file will encode it such that the recipient can get a file
with the same content as you have on disk.
I assume by "copy/paste this picture in an html mail" you mean you open
the image in some other application, copy from there and paste into the
HTML message so that the image is displayed as part of the message. In
that case, SeaMonkey just gets the image data - it doesn't know anything
about the file on disk that it came from (it may not even have existed
on disk). SeaMonkey will save the image data in some format to attach to
the email, which may or may not be the same format as your file on disk.
Not knowing what format it's used in your case, it's possible that it
either used JPEG with higher compression (lower quality) than you saved
the file, or perhaps the nature of the image compressed better in PNG
and SeaMonkey used that.
Of course, if the image was resized (even if not saved) before copying,
a smaller image would be pasted into SeaMonkey so would result in a
smaller email.
Mark.
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