Interesting! But I think I can simply cast the collection it to IEnumerable<object> and then simply .ToString() them in the final string, that should work, as I see the classes at the moment. Thank you very much!
Whether I think I can, or think I can't, I am always bloody right!
I like the feature of email clients *not* to automatically load content from the web. Normally the email client offers the possibility to load the external content on request - and I hardly ever do so. Why should I want to load tracking images in my email, or even worse: malware images which make use of vulnerabilities in graphics libraries?