Embedded / inline Images - Offline HTML
BACKCLICK lets you send “inline” pictures as part of an HTML newsletter. The advantage is that the subscriber can view the pictures even when he or she is offline. No Internet connection is necessary to view or read the newsletter. Another advantage of inline pictures is due to the fact that, as standard practice, many e-mail clients (Outlook Express, Eudora, etc.) prohibit users from viewing images on the Internet. Because the sent “inline” images are always available, they may be viewed in their correct form at all times. If you would like to send pictures that are “inbound” in the newsletter, they must be available on the Internet or intranet via URL.
When a newsletter is being stored on your hard drive, the BACKCLICK API Server (NOT your client) will try to open an HTTP connection to the images and save them within your database. For this reason, you must be sure that this connection is possible. If a direct connection is impossible, you may configure an HTTP Proxy Server in the basic settings of BACKCLICK.
To activate this function for a newsletter, choose the option “activate” in the select box “Inline Images.” Then choose the option “store/update Inline-Images.” BACKCLICK will then start downloading the images while storing.
Abb. 11.7.3.1 - Aktivieren der Inline-Image Funktion
After the storing process is finished, BACKCLICK will try to see if the hyperlinks are available (but only if Redirect is activated). Afterwards the integrated pictures of the sources will be imported from the Internet/intranet.
Abb. 11.7.3.2 - Import der Inline Images
At the same time, BACKCLICK will carry out an optimization. Pictures that have different file names but represent identical images are recognized as duplicates, and will be sent as such in the newsletter. This reduces the size of the e-mail. If duplicates are recognized, BACKCLICK distributes a short report, which will open in separate window.