Enabling TLS for SAC Alerts notifications
FYI: Transport Layer Security (TLS) keeps hackers from seeing your internet traffic including the contents of the emails you send, your account passwords and the websites you read.
I aimed to keep costs low when building Steep and Cheap alerts because revenue was $0. I configured my own Postfix mail server instead of paying for services like Twilio, Mailgun and Sendgrid. My $20/month Linode server can easily host the website and handle several thousand outgoing emails per day. One downside of self hosting is having to tweak the mail server occasionally as best practices change. This happened recently when I noticed that Gmail was putting a scary broken red lock on SAC Alerts emails because the transmission was unencrypted.
Unfortunately, I didn’t tackle this issue for a few months because I’m not an email expert. There was a risk of unintentionally breaking the alert...
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