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Jeff Posner Email & Phone Number

Customer Success Manager at Mimecast at Mimecast
Location: Norwood, Massachusetts, United States 4 work roles
2 work emails found @sprint.com LinkedIn matched
✓ Verified May 2026 3 data sources Profile completeness 86%

Contact Signals · 2 work emails

Work email j****@sprint.com
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Customer Success Manager at Mimecast
Location
Norwood, Massachusetts, United States
Company size

Who is Jeff Posner? Overview

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Quick answer

Jeff Posner is listed as Customer Success Manager at Mimecast at Mimecast, a company with 1870 employees, based in Norwood, Massachusetts, United States. AeroLeads shows a work email signal at sprint.com and a matched LinkedIn profile for Jeff Posner.

Jeff Posner previously worked as Customer Success Manager at Mimecast and Implementation Manager at T-Mobile.

Company email context

Email format at Mimecast

This section adds company-level context without repeating Jeff Posner's masked contact details.

{first_initial}{last}@sprint.com
79% confidence

AeroLeads found 2 current-domain work email signals for Jeff Posner. Compare company email patterns before reaching out.

Profile bio

About Jeff Posner

Customer success expert with proven track record of meeting the complex needs of strategic customers. Over fourteen years experience developing and maintaining relationships with external and internal contacts. Trained, presented to, and worked directly with everyone from end users to C-suite executives.

Listed skills include Telecommunications, Wireless, Mobile Devices, 4G, and 14 others.

Current workplace

Jeff Posner's current company

Company context helps verify the profile and gives searchers a useful next step.

Mimecast
Mimecast
Customer Success Manager at Mimecast
london, greater london, united kingdom
Website
Employees
1870
AeroLeads page
4 roles

Jeff Posner work experience

A career timeline built from the work history available for this profile.

Customer Success Manager

Current
May 2022 - Present

Implementation Manager

Aug 2020 - May 2022

Implementation Project Manager

Develop and own partnerships with strategic accountsMaintain close relationships with account executives Analyze utilization patterns to identify potential risks and opportunitiesDevelop and execute unique deployment plans for new Sprint customersLead cross-functional project planning callsAct as primary point of escalation for technical issuesTrain.

Sep 2007 - Apr 2020

Specialized Care

Bedford, Massachusetts, United States

Managed a deck of over 100 state and local government accounts with over 10,000 active lines of serviceAct as single point of contact for all things customer service related including: Device troubleshootingSwaps/activationsPlan and feature changesBilling

Jun 2006 - Sep 2007
Team & coworkers

Colleagues at Mimecast

Other employees you can reach at mimecast.com. View company contacts for 1870 employees →

FAQ

Frequently asked questions about Jeff Posner

Quick answers generated from the profile data available on this page.

What company does Jeff Posner work for?

Jeff Posner works for Mimecast.

What is Jeff Posner's role at Mimecast?

Jeff Posner is listed as Customer Success Manager at Mimecast at Mimecast.

What is Jeff Posner's email address?

AeroLeads has found 2 work email signals at @sprint.com for Jeff Posner at Mimecast.

Where is Jeff Posner based?

Jeff Posner is based in Norwood, Massachusetts, United States while working with Mimecast.

What companies has Jeff Posner worked for?

Jeff Posner has worked for Mimecast, T-Mobile, and Sprint.

Who are Jeff Posner's colleagues at Mimecast?

Jeff Posner's colleagues at Mimecast include Rex Black, Samuel Lozeau, Christian Matthew Viray, Sean Carey, and Mateusz Fornal.

How can I contact Jeff Posner?

You can use AeroLeads to view verified contact signals for Jeff Posner at Mimecast, including work email, phone, and LinkedIn data when available.

What skills is Jeff Posner known for?

Jeff Posner is listed with skills including Telecommunications, Wireless, Mobile Devices, 4G, M2M, Cdma, Managed Services, and Solution Selling.

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