Original Summary

A few weeks ago I looked at our outbound workflow and realized we were paying roughly $97/month for Instantly & which was, for what we were actually using it for, mostly acting as a fancy wrapper around SMTP/IMAP. We needed multiple Google Workspace inboxes to rotate through, randomized delays, per-inbox sending limits, basic personalization, and, most importantly, automatic follow-up stopping when someone replies. So I decided to just build the thing we needed ourselves. The actual sending side is pretty small. Our Python script connects directly to our Google Workspace inboxes through SMTP, rotates between them, waits a randomized amount of time between sends, and keeps each inbox & domain within their own daily safe limits. We also have a separate IMAP process checking the inboxes for replies. If an incoming address matches someone currently in an active campaign, their status gets updated and the follow-up sequence stops automatically. That last part was probably the most annoying thing to get right when I first started thinking about doing this without a sequencer. For deliverability, I don't think there's really a secret sauce here. SPF/DKIM/DMARC need to be configured properly, the domains and inboxes need to have some history & warm ups, volumes need to be sensible, and the actual emails and lists need to be clean. The nice thing about having our own sender is that we can control exactly what happens instead of paying another subscription for features we don't use. We've been running our own campaigns through authenticated Workspace inboxes this way and so far it's been working fine. Deliverability is virtually the same as it used to be with Instantly. I'm curious how many other people have tried doing something similar. If you're already comfortable with Python, SMTP and IMAP, has anyone else bothered building their own outbound system instead of paying for a sequencer? I'm particularly interested in how people are handling reply detection, follow-up state and multi-inbox rotation. Also open to answering any questions about our own system, if anyone's curious.   submitted by   /u/sdriducolous [link]   [comments]

  • 情报分类：商业与市场研究
  • 分类依据：内容涉及商业、投资或市场动态
  • 信息来源：Reddit · SaaS
  • 发布时间：2026/9/23 20:35:19