Email sub addressing for different providers

providers.md

Google

• Domains: gmail.com, googlemail.com
• Qualifiers: +
• Regex: \+([ -~]*)@
• Notes: Periods in address are ignored. foo.bar@ == foobar@

Yahoo

• Domains: yahoo.*
• Qualifiers: -
• Regex: \-([ -~]*)@
• Notes: Yahoo has a lot of domains

iCloud

• Domains: me.com, mac.com, icloud.com
• Qualifiers: +
• Regex: \+([ -~]*)@
• Notes: unconfirmed

Fastmail

• Domains: fastmail.fm
• Qualifiers: +
• Regex: \+([ -~]*)@
• Notes: Also supports Subdomain addressing. [email protected] == [email protected]