[hrbrtglm]

How do you send your emails ?

If your customer is using google domains, microsoft 365 or what else, and the employees do not fall in your phishing attempt and report your mail as spam, you may be heading for some trouble with delivery afterward.

[naftaliharris]

I'm sending the emails directly from my server with the unix "mail" utility.

Ending up in spam is actually what most concerns me about this idea, and in fact this concern was what led me to choose the "you don't pay unless someone clicks on a link" pricing--I was worried that some of the emails might eventually start ending up in spam after a few customers and wanted to make sure I wouldn't be charging people if that happened.

I'm planning to see what works once/if the phishing emails actually start ending up in spam.