Dots in addresses
A dot before the @ is an ordinary character: amy.smith@example.com and amysmith@example.com are two different addresses. Mail to one that does not exist is refused, like any unknown address.
Ignoring dots on a domain
Some people type addresses with or without dots. A domain can ignore them, the way some large mail providers do: mail to amy.smith@, amysmith@ or a.m.y.smith@ then reaches whichever of them exists, with any +tag kept (amy.smith+news@ reaches amysmith@ and is filed as news). It covers mailboxes, aliases, mailing lists and rooms.
Turn it on per domain: Domains → the domain → Ignore dots before the @ in the tenant manager (owners, admins and tenant roles with Domains), or corpsuite domain set TENANT DOMAIN ignoreDots:=true.
While it is on:
- No two addresses on the domain may differ only by dots. A new mailbox, alias, list or room that would is refused as taken. Turning it on is refused while such pairs exist, and the message names them; rename or remove all but one of each first.
- Sending does not change. You send only as your address exactly as it is written, never as a dotted spelling of it.
Turning it off makes every spelling a separate address again; nothing else changes.
Shared domains
On shared domains (the ones anyone can sign up on, such as mailo.city), an address that differs from an existing one only by dots is always refused, whether or not the domain ignores dots: otherwise a.my@ could sign up next to amy@ and pass for them.