Attachments: Sending to your List.
By default, attachments are allowed for all new Mailing Lists.
Mail-List.com will accept attachments up to 25 MB, and send those same files to all Subscribers.
Things to Consider
Not all ISPs will accept large file attachments.
In fact, large attachments often are caught by filters and considered Spam at your Subscriber's ISP.
The Clickable Links option solves the Spam problem.
By storing the attachments on our server, the email is a normal size with an included hyperlink. The link is automatically inserted in the email.
To set up this option, please see Attachments: Send as links.
With this setting, all attachments sent to your List are removed. A hyperlink is added to messages before sending to Subscribers.