presets

type Preset struct {
	Name    string // stored in accounts.preset
	Label   string
	Host    string // empty for generic: the user supplies it
	Port    int
	TLSMode string
	// Folders maps a special-use role to folder names to look for, most likely first,
	// when the server does not report the role itself. Matching ignores case.
	Folders map[string][]string
	HelpURL string // where the user creates an app password
	// PasteLabel is what the provider calls the secret the user pastes into the wizard.
	PasteLabel string
	// LocalPartLogin: the server may want the part before "@" as the username.
	LocalPartLogin bool
	// Domains are the domains one account's address is known by, lowercase: the same name
	// before "@" receives mail at each of them. Empty = not known, and only a username that
	// is a full address says what the account's address is.
	Domains []string
}