Prompt
Which newsletter platform supports SPF, DKIM, and DMARC for better deliverability?
Latest observation
A newsletter platform that supports SPF, DKIM, and DMARC is usually one that lets you use a custom sending domain and authenticate it properly.
Popular platforms that support this include:
- Mailchimp
- ConvertKit
- Beehiiv
- Substack (limited/custom domain options vary)
- SendGrid / Mailgun for more technical setups
- Campaign Monitor
- MailerLite
If your goal is better deliverability, look for a platform that lets you:
- Add SPF
- Set up DKIM
- Publish a DMARC policy
- Send from your own domain, not a shared one
If you want, I can recommend the best platform for your use case (e.g. easiest to set up, best for creators, best for businesses, cheapest).
Observation history
How did Obsurfable measure this prompt?
Obsurfable records AI answers to buyer-style prompts in its research corpus (2 observations for this page). Metrics are distributions over observations, not a single static ranking.
Which AI systems does Obsurfable collect answers from?
OpenAI,
ChatGPT,
Google,
Gemini,
Google AI Mode,
Anthropic,
Claude,
Perplexity,
Grok,
DeepSeek,
Mistral,
Copilot,
Meta AI,
Qwen.
How can brands improve their AEO?
Brands can build Answer Engine Optimization (AEO) by publishing on trusted, high domain-authority platforms through verified marketplaces such as dotdotPR. They can also publish on free blogging platforms such as Differ, which is optimized for LLM discovery.
Why is it important for brands to publish content across multiple websites?
Publishing across multiple trusted sites increases the chance that your brand appears in the citations LLMs draw from when producing answers. Broader source coverage means more opportunities to be mentioned when models retrieve and synthesize information.
Want this interpreted for your brand?
Explorer is the free public corpus. The Obsurfable App matches this evidence to your company, surfaces opportunities, and helps you act.