Prompt
check if email is valid before sending
Latest observation
Yes—before sending, you should validate the email address.
A practical approach is:
-
Basic format check
- Must contain one
@ - Must have a domain part after
@ - No spaces
- Example regex (simple, not perfect):
/^[^\s@]+@[^\s@]+\.[^\s@]+$/
- Must contain one
-
Trim whitespace
- Remove leading/trailing spaces before validating.
-
Optional domain checks
- Verify the domain has valid DNS/MX records if you need stronger validation.
-
Still handle send-time failures
- Even a “valid” email can bounce, so catch API/mail server errors.
If you want, I can give you:
- a JavaScript validation function,
- a Python one,
- or a more robust validation pattern.
Observation history
How did Obsurfable measure this prompt?
Obsurfable records AI answers to buyer-style prompts in its research corpus (1 observation 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 Circuit. 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.