The Australian Federal Police has charged the 32-year-old Blacktown man with using a telecommunications service to menace, harass or cause offence.

He has been released on bail to appear in court on September 2.

The AFP commenced its investigation following a report from electoral officials on June 10.

The man is accused of sending spam emails, which appeared to be from a legitimate source, to community members and organisations.

Police will allege the man used telecommunications services subscribed to by using suspected fraudulent identification documents.

The Australian Electoral Commission said it had referred the matter to the electoral integrity assurance task force on June 10 and continued to provide evidence to support the investigation.

"The AEC takes this matter, and all electoral integrity matters, very seriously," it said in a statement.

The task force, which includes the AFP, was set up in 2018 for federal by-elections and oversaw the federal election in 2019.

The AEC has been running a social media advertising campaign in Eden-Monaro - branded "Stop and Consider" - reminding voters of the importance of considering the source of electoral information.

Australian Associated Press