Items is an indexed TIdEMailAddressItem property that allows access to TIdEMailAddressItem entries in the collection using an Integer index value. 

Index positions in the collection are zero-based. Accessing an index position larger than the length of the collection will raise an exception. 

Items is the default property for the TIdEMailAddressList collection. 

Use SortByDomain to order the Items in the collection by the domain name for each email address collection item. 

Use AddressesByDomain to gather a list of collection items that match a specified Domain value. 

Use GetDomains to gather a unique list of Domain values found in the Items for the collection.

TIdEMailAddressList.SortByDomain 

TIdEMailAddressList.AddressesByDomain 

TIdEMailAddressList.GetDomains 

TIdEMailAddressItem