Why are you not using a Transactional SMTP service?
As you may or may not know, transactional emails are one of the most important emails for your web app / website.
Emails like: password reset emails, sign up emails, e-commerce or forum notification emails etc.
Even if the website or web app you have//or run does not generate a lot of (email) traffic, you'd always want to have access to any website/web app generated emails like password resets, in case of emergency. You'd always want the option, to be able to troubleshoot.
I am just wondering, in case you are not using any SMTP or email API service for this, why aren't you using any?
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