Spammer Robert Alan Soloway is facing heavy prison time and stiff fines after pleading guilty in U.S. District court to single counts of mail fraud, email fraud and tax evasion. The original indictment included over 40 criminal charges including aggravated identity theft, money laundering and wire fraud.

The charges stem from the company Soloway ran from 1997-2007. Newport Marketing offered spamming services and also a software package that promised to make it easy for others to send their own spam. The company’s services included a $195 package that promised delivery of the customer’s ad to 2 million email addresses in 15 days. Soloway bragged that his company had a database of over 150 million addresses to spam. This isn’t the first time he and his company have been in trouble-in 2005 Microsoft sued and won a $7.8 million judgement against him.

Soloway is scheduled to be sentenced on July 14. He faces 25 years in prison and over $300,000 in fines.