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I am in the process of building a simple send-only SMTP server and have a couple minor issues. I am looking for someone to look at what I've completed so far and guide me through the process of correcting it.
Right now, I have an Ubuntu VPS server setup with Postfix, SASL, DKIM and SPF. I'm able to connect via SMTP and send fine, however, DKIM and SPF don't seem to be set up correctly.
I have written myself a step-by-step guide I'm trying to complete, which I will be able use to walk myself through building another server. The winning bidder would need to be able to look what I've done and fix any errors I've made and/or add any missing steps that are needed.
Note: I'm NOT looking for someone to build a full SMTP mail server from scratch.