Using emotional triggers in the subject line helped drive greater open rates among Mother's Day emails sent in 2014 and 2015, according to a report from Yesmail Interactive and Persado. The companies looked at emails sent by 13 retailer in the two week period leading up to the holiday and found that those companies that added language that triggered emotions in the subject line, the open rate was 10.3 percent, 21.5 percent greater than the average 8.5 percent.

Despite the fact that the most successful Mother's Day campaigns featured personalized gift suggestions, most marketers relied on batch and blast campaigns during the holiday, according to research from eDataSource. The research revealed that Rosetta Stone, for instance, sent the highest volume of emails at 5.4 million promoting gifts for mom, yet only 4.9 percent were opened. Retailers did better. Amazon, for instance, sent 22 different email varieties of Mother's Day emails.

James Comey, the F.B.I. director, has no plans to race the Clinton email investigation in order to meet the election timetable. Comey told reporters that his agency wanted to do their job well and promptly but that they are not living by any deadline.

Mailplane is a Mac app that keeps the email experience simple. The app, which costs $24.95, supports multiple Google accounts, making it easy for users of several email addresses to navigate between them in one very basic tabbed browser-like app.

Front, an app designed to help people share email addresses, is working to make collaboration more effective for support teams. The tool allows users to manage their emails into tasks by creating assignments, comments and even filtering emails that come into support@, jobs@ or contact@ email addresses. This allows a support team to collaborate around inquiries and manage the tasks among multiple people.

Gratefuless, a free app that offers gratitude exercises, sends out daily email assignments to help encourage engagement. Once a user signs up, the service sends an email asking the recipient what they are grateful for that day. The idea of the daily communication is to keep users coming back to the tool after the initial excitement wears off.

Many of Hillary Clinton's emails while secretary of state were sent through the State Department's unclassified system state.gov. The platform is considered secure but not at the level of the State Department's system for sending classified information.

Shiva Ayyadurai, an MIT graduate who claims to have invented email in the late 1970s, is suing Gawker Media for $35 million for defamation. Ayyadurai filed the lawsuit in federal court in Boston this week, claiming that Gawker's tech site, Gizmodo, posted two "false and highly defamatory articles" about him in 2012. The suit alleges that the news site accuses Ayyadurai of being a fraud.

The BBB is warning consumers in Alabama to beware emails that look as though they come from Dropbox. The emails, which have been circulating in the area over the past several weeks, look as though they come from the file sharing company but are in fact loaded with malware. The spam messages use the company's real logos and colors to appear real. They encourage users to download a file, which then installs malware onto the recipient's device.

Vogue writers think there needs to be more etiquette in professional emails. The publication admits that email is casual in nature, but thinks that 'Best' is a better way to sign off a business email than with a digital air kiss "X". "'Best' is only three letters longer than the oft-used 'X,'" the fashion magazine explains. Other things that irk Vogue writers in email: The use of 'Dear', 'K' and pitches that begin, 'Hey Bro.'