Interspire Email Marketer: Configure local SMTP (Postfix) on Contabo VPS to send newsletters

@nintysix96

Rough numbers above are placeholders; we'll nail down the final price once we've had a quick look at the current state of the server. You've got Interspire installed and ready to go on Ubuntu 22.04 with Plesk, but the local Postfix setup isn't playing nice yet. What you need is a clean Postfix relay config that lets Interspire fire newsletters directly from the VPS, with SPF, DKIM, and DMARC all properly wired up for [login to view URL] so messages actually land in inboxes rather than spam folders. That's a straightforward job we've done a few times on similar Plesk/Contabo setups. Here's how we'd approach this: - Postfix review and relay config: SSH in, audit the current [login to view URL] and [login to view URL], then configure Postfix to accept relay from localhost only, so Interspire can talk to it on port 25 or 587 without opening anything to the outside. - Interspire SMTP settings: Update the email settings inside Interspire to point at localhost, verify auth settings, and do a quick test send from the UI to confirm the handoff works. - SPF, DKIM, DMARC via Plesk: Generate the DKIM keypair through Plesk's mail settings, then set or tighten the DNS records for news.sendora.gr. We'll also run a check with a tool like mail-tester to confirm the records are resolving correctly before the first real send. - Cron jobs: Verify or create the Interspire cron entries for queue processing, bounce handling, and scheduled sends so nothing gets stuck. - Inbox delivery test: Send a real test newsletter to Gmail and Yahoo addresses and confirm inbox placement. If anything hits spam, we dig into the headers and fix it. - Documentation: A short plain-text summary of every change made, configs touched, and DNS records added, so you're not left guessing later. Once we confirm access and do a quick look at the current config, we'll send a short written summary of the work with a firm price and timeline. Want to jump on a quick call or just drop us SSH and Plesk credentials in a message so we can take a first look? Best, 96 Studio

@hakan1022

Hi, there! I recently configured a local SMTP server using Postfix on a VPS for a client who needed to send newsletters via Interspire Email Marketer, ensuring high deliverability and compliance with email standards. In that project, I meticulously reviewed the existing Postfix configuration and adjusted it to allow relaying from localhost, ensuring seamless integration with Interspire. One challenge was properly setting up SPF, DKIM, and DMARC records to enhance deliverability and avoid spam filters. This was resolved by carefully managing DNS settings through Plesk and confirming successful email delivery through extensive testing. For your project, I plan to assess your current Postfix configuration and implement the necessary adjustments to enable local SMTP for Interspire. By ensuring that all email authentication records are correctly configured and testing the system thoroughly, I aim to achieve optimal performance for sending newsletters. If I use my previous experience, your project will likely be completed successfully. Hope to discuss this in detail. Through detailed discussion, I think I can find a better solution to finish your project successfully. Thank you!