Best Subreddits to Promote a Newsletter

Newsletter growth threads pop up constantly in creator and founder subreddits. Direct subscribe-to-my-newsletter posts get removed almost everywhere; sharing what you learned, with the newsletter as context, is the survivable angle.

10 communities, 7.9M combined members, ranked by each subreddit's own rules.

Where promotion is tolerated (with care)

These communities allow product mentions under their stated conditions. Read the linked rules before posting, the conditions are specific.

r/SideProject 787.5K members · ~270 posts/day

Promo-friendly

Yes, you can promote your project in r/SideProject, because the community description and sidebar explicitly say it is for sharing side projects and receiving constructive feedback. The stated requirement is the submission format: "When submitting a link to a project or startup, please use this format: [Project name] - [Short description]."

r/indiehackers 183.9K members · ~3 posts/day

Allowed with conditions

Yes, but only under specific limits. Rule 1, "Self Promotion," says, "Users can self promote their product 1 time using the Self Promotion flair" and adds that "The purpose is for feedback and critique not advertisement."

r/Emailmarketing 121K members · ~3 posts/day

Allowed with conditions

You can promote your product in r/Emailmarketing only under tight conditions. Rule 6, "Limit self-promotion," says "The bar for self-promotion is high" and requires genuine value, originality, and clear disclosure of affiliations, and Rule 5 bans deceptive promotion, referral links, affiliate links, astroturfing, and undisclosed affiliations.

r/buildinpublic 110.2K members · ~119 posts/day

Allowed with conditions

Yes, but only with context. Rule 3, "No Self-Promotion Without Context," says to avoid posting solely for self-promotion and to focus on sharing progress, lessons learned, and asking for feedback. Rule 4, "No Spam," also warns that spamming links, irrelevant content, or unsolicited advertisements will be removed.

r/Solopreneur 72K members · ~1 posts/day

Allowed with conditions

Yes, you can promote your product in r/Solopreneur, but only under clear conditions. The sidebar says, "Self-promotion of your business/idea is encouraged but should be done while sharing in an IAmA/Q&A, question, or case study," and Rule 1 says self-promotion is tolerated only if it is straightforward, with "No disguised self-promotion or affiliate links." Posts about your business that do not give information, ask specific feedback questions, or provide a guide for discussion may be deleted.

Rankings come from each subreddit's own published rules (quoted on the linked pages), not opinion. And whatever the rules allow on paper, the removal pattern everywhere is the same: batches of similar comments, reused wording, and necro-posting die. We measured it: 80% of bought Reddit comments were removed within a month.

Get the threads, not just the subreddits

PulseFox watches these communities daily, scores every post for relevance to your product, and drafts the reply. You post from your own account.