I'm using Laravel 5.5. In my app, users can write something and send it through email to someone. The thing they wrote gets recorded as a "message" in my DB. I need to, somehow, send the ID of this message in the e-mail, so when the receiver replies through e-mail, I know which message he's replying to.
What's the easiest way to do this? I know there are APIS, but I need to implement a custom solution.
Thanks for any light on this.
Use extended addressing on your mail server - replies+specialcode@example.com ... although a lot of bad "email validation" methods think it isn't valid, so I changed the extension character to a hyphen instead of the + on my postfix setup.
All mail is delivered to replies@example.com but the to: and other headers keep the specialcode part which you can then use to route into a ticketing system, etc.
This feature is supported by Postfix (recipient_delimiter in main.cf), QMail, and several other SMTP servers. Note that you need the support for this on the incoming-to-you SMTP side, nowhere else, especially if you use a character that isn't typically declared as "wrong" by various filters. May be worth splitting off a subdomain so you can easily set up separate MX servers, etc. since I'm sure you don't want your regular corporate mail running through the same filters and processing (at least, I would...)