Denver residents have until Monday to register to vote in the city's all-mail election on May 1.

Also, voters deemed "inactive" because they didn't vote in November or January will be receiving a second notice about their status in the mail, the Denver Election Commission said Friday.

After the Jan. 30 special election, the commission sent out cards to registered voters who didn't vote then or in the troubled November election.

People who received the cards could send them back and indicate they were still active voters.

The commission received about 11,500 cards back and then "scrubbed" more than 117,000 people from active voter rolls, a decision that has drawn criticism.

Though not required by law, the commission is mailing notices to inactive voters again "to stem the panic," commission spokesman Alton Dillard said.

"A normal post-election cleanup process has spiraled out of control into some kind of belief that somehow we're keeping 117,000 people from voting, which is absolutely not correct," he said.

Dillard said he didn't know the cost of the second mailing, but said "money is no object in elections."

chacond@RockyMountainNews.com or 303-954-5099