App comparison
Add up to 4 apps below to see how they compare. You can also use the "Compare" buttons while browsing.
GetApp offers objective, independent research and verified user reviews. We may earn a referral fee when you visit a vendor through our links.
Our commitment
Independent research methodology
Our researchers use a mix of verified reviews, independent research, and objective methodologies to bring you selection and ranking information you can trust. While we may earn a referral fee when you visit a provider through our links or speak to an advisor, this has no influence on our research or methodology.
Verified user reviews
GetApp maintains a proprietary database of millions of in-depth, verified user reviews across thousands of products in hundreds of software categories. Our data scientists apply advanced modeling techniques to identify key insights about products based on those reviews. We may also share aggregated ratings and select excerpts from those reviews throughout our site.
Our human moderators verify that reviewers are real people and that reviews are authentic. They use leading tech to analyze text quality and to detect plagiarism and generative AI.
How GetApp ensures transparency
GetApp lists all providers across its website—not just those that pay us—so that users can make informed purchase decisions. GetApp is free for users. Software providers pay us for sponsored profiles to receive web traffic and sales opportunities. Sponsored profiles include a link-out icon that takes users to the provider’s website.
Free Trial Email Security Software (2026)
Last updated: March 2026
88 software options
Sponsored
ContentCatcher
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Cloud-based email security, phishing protection & anti-spam
A 30-day free trial is available, after which pricing is based on the package and user count, subject to month-to-month contract. Contact vendor directly for pricing information.
Read more about ContentCatcher
Guardz
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Cybersecurity solution
No Credit Card Required
Read more about Guardz
Libraesva Email Security
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Exceptional Email Security
No Credit Card Required
multi-year discounts are available on longer terms. 3 for 2 and 5 for 3.
Read more about Libraesva Email Security
EasyDMARC
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Email security and deliverability platform
The premium plan starts at $35.99/ month.
Read more about EasyDMARC
Heimdal Email Security
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Email Protection in a Redefined Spam Filter
No Credit Card Required
Get an Instant Price Estimation by using our pricing calculator. Test all capabilities for free. 14-day trial
Read more about Heimdal Email Security
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Network security, network monitoring & endpoint protection
No Credit Card Required
Contact ESET sales for full pricing information and available discounts.
Read more about ESET Endpoint Security
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Zoho Mail is a secure, encrypted, and enterprise-ready email
Mail Lite: $1/user/month (5GB per user) or $1.25/user/month (10GB per user) Mail Premium: $4/user/month (50GB per user) Workplace: starts from $3/user/month Plans are billed annually.
Read more about Zoho Mail
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Anti-spam filter for business email. Vital email security.
No Credit Card Required
$1.26 per month per user
Read more about SpamTitan
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Delivers reliable email at scale for businesses
No Credit Card Required
Free Plan: up to 100 emails per day. Paid plans available beginning at $14.95/mo.
Read more about SendGrid
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Cloud email security & anti-spam solution
Billing is monthly for resellers and yearly for direct customers.
Read more about Zerospam
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Secure email for confidential & sensitive documents
Single user: $99 per user, per year Multiple users: Get in touch with NeoCertified Discounts are available for non-profit organizations.
Read more about NeoCertified
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
One click. Complete protection.
No Credit Card Required
Single User - 5$ monthly billed annualy Business (starting from 25 users) - $8/per 1 user monthly or $80/per 1 user yearly.
Read more about Cypherdog Encryption
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Web-based email management platform
Credit Card Required
Read more about Proton Mail
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Cloud-based cybersecurity and network monitoring platform
DNSFilter is offered across four pricing plans, outlined below. A free trial is available. Standard: Basic: $0.90 per month per user paid annually or $1 paid monthly Pro: $1.80 per month per user paid annually or $2 paid monthly Enterprise: $2.70 per month per user, paid annually or $3 paid monthly Guest Wifi: $4 per AP paid annually or $5 paid monthly Education: $2 per user per year MSP/Partner: Contact DNSFilter for pricing details.
Read more about DNSFilter
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Your Managed Email Security Specialists
No Credit Card Required
Contact Topsec for detailed pricing information.
Read more about Topsec Cloud Solutions
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
DNS filtering software provider
Innovative price models by industry:ISP, MSP, Schools,Hotels, Bus and more
Read more about Flashstart
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Email Encryption Platform
Read more about Delivery Trust
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Effectively protect all your company's emails
No Credit Card Required
From 7€ to 19€ ht /y/user (depending on the number of emails addresses).
Read more about ALTOSPAM
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Email, calendar, contacts, tasks, notes and chat in one app
No Credit Card Required
eM Client if free for non-commercial/personal use with up to 2 email accounts. Several features are only available with a Pro license. A 30-day trial with unlimited functionality is available. A single license of (the current version of) eM Client Pro is for a one-time payment of $49.95, with a significant drop in price per device in case of multi-licenses for companies (for example, a package of 10 licenses in bulk has the unit price reduced to $18.90). Upgrades to new product versions are available for a reduced fee. It's also possible to purchase Lifetime Upgrades and get all future upgrades of eM Client +1 year of VIP support for $70. 30-day money-back guarantee.
Read more about eM Client
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Extended Human Risk Management Platform, Empowered by AI
No Credit Card Required
Read more about Keepnet Labs
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Secure emails with encryption and recipient authentication
No Credit Card Required
Monthly rate of £9.30 (per user) for individual accounts | 14 day free trial * Free Accounts Also Available, Contact For Enterprise Pricing
Read more about Mailock
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Secure file sharing and electronic signatures software
No Credit Card Required
Unlimited free clients. You only pay for yourself and optionally, staff. Pay yearly to save up to 33%.
Read more about Encyro
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Email Security — Reinvented
ADVANCED ANTI-PHISHING: $4 per user/month COMPLETE MALWARE: $5 per user/month A LA CARTE: pricing upon request, contact Avanan for details
Read more about Avanan
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Manage your company's Google and Microsoft users all in one
No Credit Card Required
Planos: Basic: R$1 BRL por usuário mês Standard: R$2,5 BRL por usuário mês Security R$8,5 BRL por usuário mês Enterprise: R$10,5 BRL por usuário mês
Read more about Conecta Suite
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
RMail®, track, prove, encrypt, e-sign, certify, all-in-one.
RMail has a free version and offers a free trial. RMail paid version starts at US$7.00/month.
Read more about RMail