Spotify is testing a new way to market to audiences: by sending an email to fans of a specific band. For the first time, the company has sent out an email promoting a Foo Fighters concert to fans that listen to the group on the music streaming services. "You are receiving this exclusive email offer because you are one of the Foo Fighters top listeners on Spotify," reads the email.

Microsoft's battle with the U.S. government over email privacy overseas is about to come to a head. A federal appeals court is currently deciding the case to determine if a U.S. search warrant can be applied to data stored in Ireland. The case will affect how American companies do business abroad.

The British government agency HMRC has mistakenly leaked the email addresses of job applicants to potential rivals in a mass email that went out to all applicants. The agency called the email a glitch and apologized for the hiccup which made about 500 email addresses available to others.

Hawaii First Federal Credit Union has notified customers that a hacker may have accessed one of its employee's email accounts, along with the personal information of customers. The unauthorized individual may have accessed customer names, addresses, Social Security numbers and bank account numbers while in the email account. Since then the email account has been shut down and all employee email passwords have been reset.

A former Tesla engineer has been arrested for allegedly hacking into his former boss's email account and stealing employee evaluations. Nima Kalbasi is also accused of obtaining a report about a customer complaint and then posting it online. Kalbasi, a Canadian citizen, was arrested this week when he entered the U.S. He was charged with two counts of felony computer intrusion.

Edward Snowden has called Hillary Clinton ridiculous for thinking that using a personal email server while serving as secretary of state was more secure. In an interview with Al-Jazeera, Snowden also said that Clinton should have known better. "Anyone who has the clearances that the secretary of state has, or the director of any top-level agency has, knows how classified information should be handled," he said.

Google has rolled out native ads in Gmail. The product, which was previously available in beta, allows advertisers to buy ads directly from AdWords that sit at the top of the inbox, looking like regular email. These native ads are collapsed by default but expand to full-page native ads when clicked on.

Brian Pagliano, the former State Department employee who helped Hillary Clinton set up her private email server, has taken the Fifth. Magliano's attorneys sent a letter to the oversight committee this week explaining that he will not testify at next week's hearing.

Email is a more effective for expressing romantic feelings than voicemail, according to a new report. Researchers from Indiana University's Kelley School of Business and California State University-Sacramento worked with 72 university age people to determine which modes of communication work best for expressing feelings. "When writing romantic emails, senders consciously or subconsciously added more positive content to their messages, perhaps to compensate for the medium's inability to convey vocal tone," explained the researchers in the report.

Email used in conjunction with social media drives more engagement, according to a new report from IBM's Silverpop. The report reveals that marketers can learn from social media the kinds of content that resonates with fans and can use these insights to develop email content. In addition, email can help promote hashtags that brands are looking to gain ground on social media.