GreenArrow Engine
Change Log
Getting Started
- GreenArrow Concepts
- Hardware Requirements
- Supported Linux Distributions
- SSH Access
- Co-Existing With Other Software
- Firewall Configuration
- Installation Guide
FAQs
- GreenArrow Engine and AWS
- Common Error Messages
- Message Delivery
- Modifications and Customizations
- Pausing and Dumping Queues
- Security
- Direct Database Access
- Getting Started with Email Injection
Configuration
- Configuration File
- General Settings
- Performance Tuning
- Adding a New Domain
- Adding a New IP Address
- Adding A New Whitelabeled Cloud Domain
- IPs Authorized to Relay
- License Key
- URL Domains
- Convert PowerMTA® Configuration
Email Authentication
- DKIM
- SPF and Sender ID
- Adding a New From Address Domain
- Email Authentication for ESPs
Injecting Mail
- SimpleMH Injection
- Raw Injection
- - Raw Injection Headers
  - PHPMailer Raw Injection Example
- Injecting Mail with HTTP Submission API
- Local Injection Options
- QMQP
- QMQP Streaming Protocol
- Speed Considerations
Delivering Mail
- VirtualMTAs
- Throttling
- - Updating Throttle Settings on the Command Line
  - Updating Throttle Settings in SQL
- Dynamic Delivery
- Retry Schedule
Incoming Email
- Incoming Email Domains
- Aliased Incoming Email Domains
- Bounce Mailboxes
- Spam Complaint Mailboxes
- Email Forwarders
- SMTP AUTH and POP3 Email Users
- DNSBLs and RBLs
Bounces and Spam Complaints
- Bounce Processor Concepts
- Bounce Processor Configuration
- Spam Complaint Processor
- Feedback Loops
- - AOL Whitelisting
  - Yahoo's transition from ReturnPath
Reporting
- Send Statistics Overview Page
- Send Statistics Pages
- Send Statistics Integration
- Dynamic Delivery Statistics
- Stats API
- Local Delivery Attempt Status Messages
- Remote Delivery Attempt Error Messages
- hvmail_report Command
- Delivery Attempt Log
- Delivery Event Processed Logfile Format
- Remote Delivery Status Log
- hvmail_generate_email_report Command
- hvmail_get_possible_spamtrap_hits Command
- Service Logs
- GreenArrow Status Command
Event Notification System
- Types of Events
- Legacy Types of Events
- Event Delivery Methods
- Event Notification System Configuration
- Event Processor
Network Services
- DNS Cache
- HTTP Server
- PostgreSQL
- POP3 Server
- SMTP Services
- Disabling SMTP-AUTH Username Logging
- TLS Encryption for SMTP
Server Management and Backups
- GreenArrow Updates
- Server Management
- Managed Backups
- Unmanaged Backups
- Restoring Backups
- Server Migrations
- Server Monitoring
- StatsD Integration
- fail2ban Integration
- Stopping and Starting GreenArrow Engine
- hvmail_init Command
- Troubleshooting Disk Space Issues
- High Availability Cluster
- - High Availability Cluster Administration
  - Self Managed High Availability Clusters
APIs
- Stats API
- HTTP Submission API
- Configuration API
- Running Custom Code During Delivery Attempts
Third Party Integrations
- Amazon SES Integration
- Interspire Email Marketer Integration
- Ongage Integration
- SendGrid Integration
- SMTP Relay Service Integration
Technical Support Contact Info

Delivering Mail

GreenArrow Engine’s primary function is to deliver email after it is injected. This process is controlled using the following settings:

VirtualMTAs control what IP address, relay server or pool of other VirtualMTAs are used to deliver email.
Throttling is used to control how quickly email is delivered.
Dynamic Delivery adds a layer of intelligence to throttling by allowing you to configure rules which dynamically adjust how quickly GreenArrow attempts to deliver mail based on how much mail is being accepted, bounced or deferred.
GreenArrow’s Retry Schedule is used when a delivery attempt is either deferred or throttled.

Speed Considerations

VirtualMTAs