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EmailSuccess

emailsuccess.com

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Spec score 9.4 #1 of 41 in Transactional Email Software

What it is

EmailSuccess is an on-premises mail transfer agent for enterprise email gateways and high-volume SMTP servers. It manages outbound delivery, sending reputation, and changing authentication requirements. Its deliverability engine analyzes ISP responses and adjusts delivery settings in real time. Flexible queues, multiple IP pools, and connection pooling support high-volume sending and traffic prioritization. Authentication features include DKIM signing, DMARC compliance, and SPF and SenderID monitoring; TLS delivery encryption can be governed by configurable rules. The product classifies and reports bounces and feedback loops, and can forward ISP spam complaints to another system. Sending and message analysis are supported through SMTP, input scripting and filtering, and REST and SOAP APIs. Management tools include VirtualMTA traffic segmentation, an SSH console, and a web interface for monitoring and message history. The Free plan costs nothing, billed annually, and lists 100,000 emails per day and two active IPs.

Spec sheet

What it does
EmailSuccess is an on-premises mail-transfer agent for enterprise gateways and high-volume SMTP sending.Read 15 Oct 2026 · emailsuccess.com
Purpose
It manages outbound email delivery, sending reputation, and changing authentication requirements.Read 8 Oct 2026 · emailsuccess.com
Product
EmailSuccess is an on-premises high-performance mail transfer agent for enterprise email gateways and high-volume SMTP servers.Read 8 Oct 2026 · emailsuccess.com
Free plan
YesRead 22 Sep 2026 · emailsuccess.com
Integrations
Listed technology integrations include Splunk, Elastic, Kafka, Pravega, HerdDB, Rspamd, Ongage, BlackBox and MySQL.Read 15 Oct 2026 · emailsuccess.com
Privacy
Diennea's privacy policy says its website personal-data processing is described under GDPR and identifies Diennea as the data controller.Read 8 Oct 2026 · emailsuccess.com
Support
The Free plan lists community forum support, while Standard and Enterprise list individual support.Read 8 Oct 2026 · emailsuccess.com
Headquarters
The listed headquarters are in Faenza, Ravenna, Italy, with offices also reported in Milan, Bologna and Paris.Read 15 Oct 2026 · emailsuccess.com
Maker
The company page identifies Diennea S.r.l. as the maker and says it has been active in Italy since 1996, with headquarters in Faenza.Read 8 Oct 2026 · emailsuccess.com
Administration
VirtualMTA segmentation, an SSH console and a web interface provide traffic control and message-history monitoring.Read 15 Oct 2026 · emailsuccess.com
API capabilities
The REST and SOAP APIs can send, search and analyze messages without an SMTP connection.Read 15 Oct 2026 · emailsuccess.com
Authentication
The product supports DKIM signing, SPF monitoring, DMARC compliance and TLS encryption controls.Read 15 Oct 2026 · emailsuccess.com
Blacklist monitoring
EmailSuccess checks sending IPs against major public realtime blacklists and raises warnings.Read 15 Oct 2026 · emailsuccess.com
Bounce handling
Bounce processing supports hard and soft categories, SMTP-style classifications, custom patterns and feedback-loop complaint forwarding.Read 15 Oct 2026 · emailsuccess.com
Company founded
LinkedIn lists the company as founded in 1996 with 51–200 employees.Read 15 Oct 2026 · linkedin.com
Company ownership
EmailSuccess is powered by privately held Diennea S.r.l.Read 15 Oct 2026 · linkedin.com
Data feeds
It can export collector data, stream data to external collectors, and send HTTP notifications about message events.Read 8 Oct 2026 · emailsuccess.com
Dedicated IP option
YesRead 22 Sep 2026 · emailsuccess.com
Deliverability
Its deliverability engine automatically analyzes ISP responses and tunes delivery parameters in real time.Read 8 Oct 2026 · emailsuccess.com
Deliverability engine
The system automatically tunes SMTP and connection parameters in real time according to individual ISP behavior.Read 15 Oct 2026 · emailsuccess.com
Delivery methods
bothRead 22 Sep 2026 · emailsuccess.com
Encryption
The product supports TLS encryption for email delivery, with configurable rules for when to enable it.Read 8 Oct 2026 · emailsuccess.com
Event data
Collectors, real-time streaming and HTTP notifications export delivery events to external systems.Read 15 Oct 2026 · emailsuccess.com
Event webhooks
YesRead 22 Sep 2026 · emailsuccess.com
High-volume delivery
Flexible queues, parallel IP pools and connection pooling are provided for high-speed, high-volume delivery.Read 15 Oct 2026 · emailsuccess.com
Independent assessment
Sprout24 characterizes the on-premises deployment and initial configuration as disadvantages and also flags maintenance and update effort.Read 15 Oct 2026 · sprout24.com
Input interfaces
Messages can enter through SMTP, input scripts, input filters, REST API or SOAP API.Read 15 Oct 2026 · emailsuccess.com
Installation
The maker describes EmailSuccess as easy to install and ready to integrate with existing systems with minimal changes.Read 15 Oct 2026 · emailsuccess.com
Interfaces and APIs
It supports SMTP, input scripting, input filtering, and REST and SOAP APIs for sending, searching, and analyzing messages.Read 8 Oct 2026 · emailsuccess.com
IP warmup
Automatic warmup rules can add or remove sending IPs while attempting to protect reputation.Read 15 Oct 2026 · emailsuccess.com
ISP controls
Administrators can configure provider-specific connection limits, throttling, retry timing, graylist retries, MX rollups and wildcard domains.Read 15 Oct 2026 · emailsuccess.com
Licence wording
The product announcement calls the free edition a free license option but does not identify an open-source licence.Read 15 Oct 2026 · emailsuccess.com
Limit: freezing
Another G2 reviewer reported occasional software freezes that required support assistance.Read 15 Oct 2026 · g2.com
Limit: interface and features
A G2 reviewer wanted a better user interface, more features and stronger deliverability improvement.Read 15 Oct 2026 · g2.com
Limit: support variability
Software Finder lists customer-support response time as potentially variable.Read 15 Oct 2026 · softwarefinder.com
Limit: update adaptation
Software Finder says frequent updates may make feature adaptation harder.Read 15 Oct 2026 · softwarefinder.com
Management
The product includes VirtualMTA traffic segmentation, an SSH console, and a web interface for monitoring and message history.Read 8 Oct 2026 · emailsuccess.com
Notable news
A November 23, 2018 announcement introduced Free, Standard and Enterprise editions beginning with release 11.17.Read 15 Oct 2026 · emailsuccess.com
Praise: integration
The verified Software Advice reviewer described EmailSuccess as easy to use, effective and well integrated.Read 15 Oct 2026 · softwareadvice.com
Praise: usability and support
A G2 reviewer praised the intuitive workflow, productivity gains and responsive support.Read 15 Oct 2026 · g2.com
Privacy compliance
Diennea's privacy policy states processing is governed by GDPR principles and identifies a data-protection officer.Read 15 Oct 2026 · emailsuccess.com
Rating on G2
4.0 out of 5 from 2 reviewsRead 15 Oct 2026 · g2.com
Rating on Software Advice
4.0 out of 5 from 1 reviewRead 15 Oct 2026 · softwareadvice.com
Rating on Software Finder
No rating; the listing reports no reviews yetRead 15 Oct 2026 · softwarefinder.com
Security statement
The maker describes message-integrity protections and TLS support from input interfaces through delivery.Read 15 Oct 2026 · emailsuccess.com
Support model
Free users are directed to a community forum, while Standard and Enterprise include individual support.Read 15 Oct 2026 · emailsuccess.com
Throughput
Flexible queues, multiple IP pools, and connection pooling support high-volume sending and traffic prioritization.Read 8 Oct 2026 · emailsuccess.com

Plans and prices

Free Free billed annually 100,000 emails/day · 2 active IPs Read 22 Sep 2026 · emailsuccess.com
Free Free €0/year 100,000 emails/day · 2 active IPs · community forum Read 15 Oct 2026 · emailsuccess.com
Standard €4,000 a year €4.000/year Unlimited emails · unlimited active IPs · individual support Read 15 Oct 2026 · emailsuccess.com
Enterprise €10,000 a year €10.000/year Unlimited emails · unlimited active IPs · individual support · high-availability cluster · MagNews On-Premises integration Read 15 Oct 2026 · emailsuccess.com

Every EmailSuccess plan and price →

Strong points and limits

Strong points

  • Adjusts delivery settings based on ISP responses.
  • Includes DKIM, DMARC, SPF, and SenderID features.
  • Supports TLS with configurable rules.
  • Offers SMTP and REST and SOAP APIs.
  • Free plan lists 100,000 emails per day.

Limits

  • Free plan is limited to two active IPs.
  • Free plan lists community forum support.

Who it suits

It is aimed at organizations running enterprise email gateways or high-volume SMTP servers that need control over outbound delivery. Its on-premises deployment and management interfaces may suit teams administering their own mail infrastructure.

Verdict

EmailSuccess combines delivery controls, authentication monitoring, APIs, and operational interfaces for high-volume email environments. The Free plan specifies daily volume and active-IP limits; higher tiers list unlimited capacity but no prices.

Where Specifiction places it

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