The California Code of Civil Procedure section 1010.6 allows for electronic service to other parties. It states in pertinent part:

(a) A document may be served electronically in an action filed with the court as provided in this section, in accordance with rules adopted pursuant to subdivision (e).

For the rules and guidelines for electronic service, you may refer to California Rules of Court rule 2.251 and Code of Civil Procedure section 1010.6. California Rules of Court, rule 2.251 states in pertinent part:

(c) Electronic service required by local rule or court order

(3) Except when personal service is otherwise required by statute or rule, a party or other person that is required to file documents electronically in an action must also serve documents and accept service of documents electronically from all other parties or persons, unless:

(A) The court orders otherwise, or

(B) The action includes parties or persons that are not required to file or serve documents electronically, including self-represented parties or other self- represented persons; those parties or other persons are to be served by non- electronic methods unless they affirmatively consent to electronic service.

Code of Civil Procedure section 1010.6 states in pertinent part:

(a) A document may be served electronically in an action filed with the court as provided in this section, in accordance with rules adopted pursuant to subdivision (e).

(2) (A) (i) For cases filed on or before December 31, 2018, if a document may be served by mail, express mail, overnight delivery, or facsimile transmission, electronic service of the document is not authorized unless a party or other person has agreed to accept electronic service in that specific action or the court has ordered electronic service on a represented party or other represented person under subdivision (c) or (d).

(ii) For cases filed on or after January 1, 2019, if a document may be served by mail, express mail, overnight delivery, or facsimile transmission, electronic service of the document is not authorized unless a party or other person has expressly consented to receive electronic service in that specific action or the court has ordered electronic service on a represented party or other represented person under subdivision (c) or (d). Express consent to electronic service may be accomplished either by (I) serving a notice on all the parties and filing the notice with the court, or (II) manifesting affirmative consent through electronic means with the court or the court’s electronic filing service provider, and concurrently providing the party’s electronic address with that consent for the purpose of receiving electronic service. The act of electronic filing shall not be construed as express consent.

Filing Electronically on a Case is also Consent to Electronic Service

You may refer to California Rules of Court, rule 2.251:

(b)(1)(B). By efiling the document, you agree to accept electronic service at the electronic service address you provided. Self-represented parties must affirmatively consent to acceptance of electronic service.