A short companion for Email Normalizer: when it is useful, what it expects, and what to check before using the result.
What it does
Normalise an email address to a canonical form: lowercase the domain, strip a +tag from the local part, and remove dots for providers where they are ignored. Useful for deduplicating a mailing list.
Use the tool
Open Email Normalizer, add the input the tool asks for, run it, and check the output before using it elsewhere.
Input and output
- Input: text.
- Output: text.
- Category: Data.
Privacy and processing
Processing happens locally in your browser. This tool does not upload the input to ilham.dev.
Questions
Is removing dots always safe?
No. Dots are only ignorable at specific providers — Gmail and a few others. At most providers first.last and firstlast are genuinely different mailboxes, so only apply this when you know the domain.
Related guide
For broader background, see Email Debugging.