AWS IP addresses can be problematic for setting an email server in an EC2 instance…even with right setup email sent from the IP address can be marked as spam.
So what to do with setting up SMTP for your web applications? One alternative is to use AWS SES service. I decided not to use SES, however, because 1) each email address or domain needs to be approved and 2) there is cost associated with number of email sent out. These aren’t too bad of the restrictions but I wanted something that JUST work without configuring every time I build a website.
I went with MSMTP to use my gmail account to send email message by default. I can also overwrite the smtp setting per linux account. So if I were to host sites that are not mine, they can use their own smtp setup.
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