Hi. I'm Al. I solve email problems. I know email marketing best practices, deliverability, email authentication, and I know what to do with acronyms like SPF, DKIM, DMARC and BIMI. I blog about that stuff over on Spam Resource and I have written rather a large number of shell scripts (including a double opt-in mailing list signup manager.)
For the past fifteen years I've led, managed or handled varying versions of deliverability operations, services or product management for a popular email service provider platform.