[Lowfer] Reminder- Attachmnt+message size limit 50KB

[Zack Widup]

I can remember manually converting photos and other files with
UUENCODE and MIME64 before posting them on USENET groups. What a pain!

I think when I set up a qth.net group it gave me the option of
permitting larger file attachments, which I chose. There's still a
limit but it's bigger than 50k.

73, Zack W9SZ


On 2/3/13, Doug Reed <n0nas at amsat.org> wrote:
> Just another reminder that QSL.net limits the total message size to
> 50KB, including any attachments. Several people had messages bounce
> last night because of the limit and most of them were over
> 500KB.
>
> The essential problem is that email is a 7-bit ASCII format while
> image file attachments are 8-bit binary. Your email program will
> automatically convert binary files into a special format using just
> ASCII text characters, but when this happens, the file size grows by
> about 12%. Essentially, the email program takes every 7 extra bits and
> stuffs them into an extra ASCII character in the text. I expect the
> problem is even worse if your email program is sending HTML text or
> using UTF-8 or other international character formats. Those formats
> are all larger than plain ASCII text.
>
> If you want to attach a file to your email, I recommend you try to
> edit it down to 40-45KB or less before you attach it. I also recommend
> you ALWAYS choose "plain text" format when composing any email to the
> QSL.net remailers. Many email programs have a configuration option
> that can be set for each destination address that says what email
> format to use for that destination.
>
> 73, Doug Reed, N0NAS.
> LOWFER volunteer list admin.
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