Mimecast reviews

3.4

59% would recommend to a friend

(773 total reviews)

Marc van Zadelhoff

56% approve of CEO

40% positive business outlook

Mimecast has an employee rating of 3.4 out of 5 stars, based on 773 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Mimecast employee rating is in line with the average (within 1 standard deviation) for employers within the Information Technology industry (3.9 stars).

Reviews by job title

773 reviews
2.0
Sep 4, 2025

Great People, Poor Leadership

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

• Competitive benefits. • Hardworking non-manager employees. • Excellent facilities teams and modern offices (some with free lunch). • Global footprint offers diverse, talented colleagues. • Still growing, though not fast enough for investors.

Cons

• Culture declined sharply, with frequent reorgs, poor communication, and no clear direction. • Executive leadership is a revolving door and makes reactive decisions without proper planning (e.g., rushing out a copycat hybrid policy after Amazon’s RTO announcement, without ensuring offices had enough desks). • Low morale driven by shifting priorities and lack of recognition. • Toxic managers who take credit, shift blame, publicly humiliate reports, and are either overly controlling or completely disengaged. • Career development is virtually nonexistent. Goals are vague, constantly shifting, or contradictory. Meanwhile, higher-level roles appear with low requirements and are given to cheaper external hires while qualified internal employees are sidelined or discouraged from applying. • Raises and bonuses are underwhelming. One profitable quarter, bonuses were cut to less than half of target, followed by "We Appreciate You" cookies from HR - a tone-deaf gesture that highlighted the disconnect. • Hybrid policy has a clear double standard - most leaders work remotely, while others are held to an overly broad “commuting distance” rule. • Departments operate in silos with limited cross-functional collaboration.

1.0
Sep 2, 2025
Recommend
CEO approval
Business Outlook

Pros

A few smart engineers and ICs still trying to do real work despite constant interference. Exposure to email security space, if you can survive the politics long enough.

Cons

Product leadership is a disaster. The CPTO sets the tone with paranoia, control, and obsession over trivial details. Instead of vision, you get micromanagement, fear, and endless scrutiny. There is no trust in PMs. Every decision has to be rubber-stamped at the top. You’re not hired to build products — you’re hired to execute orders, sit through constant micromanagement, and write status updates. Favouritism is rampant. A small inner circle of product leaders is untouchable, regardless of competence. If you’re not part of it, brace yourself for nitpicking, scrutiny over the smallest details, and being thrown under the bus. Leadership rewards loyalty over skill, and those outside the circle are treated as expendable. Many of the product leaders themselves lack real product or technical depth, yet they control every decision. Their approach relies more on intimidation and politics than on collaboration or customer value. Instead of empowering teams, they undermine them with favoritism, micromanagement, and power plays. Performance Improvement Plans are weaponized. They’re not used to develop people — they’re used to get rid of those who don’t fit into leadership’s inner circle. The process is punitive by design and serves as a constant reminder that anyone can be targeted next. Strategy doesn’t exist. Priorities change weekly, dictated more by politics and escalations than customer value or product vision. Long-term planning is a joke. The culture is toxic and fear-driven. Teams spend more energy avoiding blame than delivering innovation. Creativity is crushed because stepping out of line means becoming a target. Collaboration is broken. Product and engineering alignment is nonexistent. Dependencies drag forever, but leadership only points fingers instead of fixing systemic issues. Career growth is dead. Promotions and recognition are based on proximity to leadership’s ego, not merit. Talented PMs stagnate or leave, while “favorites” get rewarded for mediocrity. Leadership turnover is high, morale is lower, and the best people are already heading for the exits.

Viewing 88 - 90 of 773 Reviews

Glassdoor has 818 Mimecast reviews submitted anonymously by Mimecast employees. Read employee reviews and ratings on Glassdoor to decide if Mimecast is right for you.