I have a problem extending my page with an RSS-Feed to be able to start an RSS-to-email campaign with Mailchimp.
According to the w3c-validator my feed is fine, but mailchimp accquires only the first item in the feed instead of all four.
The feed: http://odessa.duschko.de/de/ticketshop-v2/rss
Any suggestions? Thanks in advance!
Try adding a pubDate -- publication date -- to your items. This is an optional item for RSS, so it's valid without, but Mailchimp requires it, I believe.
If you're coding the feed yourself in PHP, bear in mind that PHP's date formatting constants helpfully include DATE_RSS/DateTime::RSS.
Mailchimp also has an example RSS feed shown in one of their Support articles -- if you're still having problems, compare your feed to that example.
Also, note (from here):
When you first set up an RSS campaign we will show the last post as an example if you haven't added an article in a few days. If this is your first send, we'll only send the posts from 24 hours before your campaign was activated for daily, from the last 7 days for weekly, and the past 30 days for monthly.
So I'm fairly sure that's why one of your posts is showing up -- because there's no publication date on any of them, Mailchip is just showing you the first one it finds as an example.