Email > Advanced use >
Sending Email Attachments
Be careful you don't send large attachments
to people on slow Internet connections.
In most applications, you can attach any file on your computer
to an email with an "Attach" button, menu item, or by right-clicking
on the email, which brings up a standard file open window. Select
the file you want to attach, double-click it or select the OK button,
and you should see either a document icon or a header line indicating
the file attached. Multiple attachments result in multiple icons
(often at the end of the email) or multiple header lines. The attached
file(s) will then be transmitted to the recipient with the email.
The first rule of attachments is to remember that large files
take a long time to be sent or received on low-speed connections,
such as dialup telephone modem connections. Therefore, a large
attachment will tie up your machine while sending it if you have
a slow connection, and more importantly will slow down the unsuspecting
recipient's machine if they have a slow connection. Therefore,
you shouldn't send someone a large file (say, over 300 KB, or 0.3
MB) unless you know they have a high-speed connection, or are sure
they won't mind taking the time needed to download it.
As a general rule, you should compress large files over several
hundred KB with the WinZip or Stuffit applications
before sending. You should also always give a file the "self-extracting" capability
when you compress it, so the other person doesn't need the compression
program to decompress it.