We write unbiased content on Blockchain Technology and cryptocurrency (among many other topics) and we email our subscribers when we have new content. But we noticed that the test (sample) email for one article in specific which was pretty crypto heavy was falling into our spam folders (we tested different emails). Not sure if it was because of the crypto theme, though? We tested an older email and it went through fine.
When this particular email actually went out, the open rate was just a little bit below our average, so not bad enough to raise a flag.
My question is, have any of you noticed any problems sending emails with these topics? Or have you had issues like this?