5. A computer hardware system for transmitting an email, comprising: at least one hardware processor configured to initiate the following executable operations: presenting, by an email client and to a user, a plurality of pre-defined attributes; receiving, from within the email client and from the user, a selection of at least two of the plurality of pre-defined attributes; receiving, from within the email client and for each of the at least two selected pre-defined attributes, a weight; forwarding, by the email client and using the at least two selected pre-defined attributes and associated selected weights, a query to an email server; receiving, from the email server and based upon the query, a plurality of contacts and associated contact email addresses; receiving, from within the email client, a selection of at least one of the plurality of contacts; and transmitting, to the selected at least one contact and by the email client, the email using an email address associated with each of the selected at least one contact.
5. A computer hardware system for transmitting an email, comprising: at least one hardware processor configured to initiate the following executable operations: presenting, by an email client and to a user, a plurality of pre-defined attributes; receiving, from within the email client and from the user, a selection of at least two of the plurality of pre-defined attributes; receiving, from within the email client and for each of the at least two selected pre-defined attributes, a weight; forwarding, by the email client and using the at least two selected pre-defined attributes and associated selected weights, a query to an email server; receiving, from the email server and based upon the query, a plurality of contacts and associated contact email addresses; receiving, from within the email client, a selection of at least one of the plurality of contacts; and transmitting, to the selected at least one contact and by the email client, the email using an email address associated with each of the selected at least one contact. 8. The computer hardware system of claim 5 , wherein at least one of the plurality of pre-defined attributes is: skills, expertise, product, organization, geography, or language.