Email Configuration Guides

In-depth guides covering every aspect of email server administration, security, routing, and compliance. Each guide walks you through the concepts and configuration steps clearly, with diagrams and screenshots.

48 guides 11 categories Anti-spam · Routing · Security · Archiving & more
Anti-Spam (6)
Blocking Spam with DNSBL – DNS Block Lists Explained
Learn how DNS-based Block Lists (DNSBL) work to stop spam at the connection level, and how to add DNSBL protection to any email server.
Hexamail Guard Hexamail Nexus Hexamail Server
4 sections Read guide
Email Greylisting – How It Blocks Spam Without False Positives
A comprehensive guide to greylisting as an antispam technique: how it works, its advantages, and how to configure it on your mail server.
Hexamail Guard Hexamail Nexus Hexamail Server
5 sections Read guide
Setting Up DMARC, SPF and DKIM to Protect Your Email Domain
Step-by-step guide to configuring DMARC, SPF and DKIM records to protect your domain from spoofing and phishing.
Hexamail Guard Hexamail Server Hexamail Nexus
6 sections Read guide
Best Antispam for Exchange 2016 – Setup Guide
How to add advanced antispam protection to Exchange 2016 using Hexamail Guard as a gateway filter.
Hexamail Guard Hexamail Server
8 sections Read guide
Best Antispam for Exchange 2019 – Setup Guide
How to add advanced antispam protection to Exchange 2019 using Hexamail Guard as a gateway filter.
Hexamail Guard Hexamail Server
7 sections Read guide
Blocking Spam with DNSBL – Real-Time Blackhole Lists
How DNSBL (DNS-based Block Lists) work to stop spam at the connection level, and how to configure DNSBL protection for your mail server.
Hexamail Guard Hexamail Nexus Hexamail Server
4 sections Read guide
POP3 & IMAP (6)
Connecting Exchange to a POP3 Account – POP3 Connector Guide
How to collect email from POP3 accounts and deliver it to Exchange Server mailboxes using a POP3 connector.
Hexamail POP3 Downloader
3 sections Read guide
Archiving Gmail Chats – How to Export and Archive Google Chat
How to archive Gmail Chat conversations by connecting via IMAP and storing them using Hexamail Vault or saving as email/text files.
Hexamail Vault
4 sections Read guide
Importing POP3/IMAP Account Settings in Bulk
How to import large numbers of POP3 or IMAP account settings into Hexamail configuration automatically using CSV import.
Hexamail POP3 Downloader
4 sections Read guide
POP3 Connector – Connecting a POP3 Account to Your Mail Server
Guide to using a POP3 connector to download email from POP3 accounts and deliver to Exchange or other mail servers.
Hexamail POP3 Downloader
1 sections Read guide
Exchange POP3 Connector – Connecting Exchange 2019 to POP3 Accounts
How to connect Exchange Server 2019 to POP3 email accounts to download and deliver email to Exchange mailboxes.
Hexamail POP3 Downloader
4 sections Read guide
Windows Server Essentials POP3 Connector – Setup Guide
How to set up a POP3 connector for Windows Server Essentials to download email from POP3 accounts and deliver to Exchange mailboxes.
Hexamail POP3 Downloader
3 sections Read guide
Email Routing (6)
Email Routing by Language – Route Email to the Right Speaker
How to automatically route incoming email to the correct recipient based on the detected language of the email content.
Hexamail POP3 Downloader Hexamail Guard Hexamail Nexus
4 sections Read guide
Setting Up Language-Based Email Routing – Configuration Guide
Step-by-step guide to configuring language-based email routing in Hexamail to automatically direct emails to the appropriate language speaker.
Hexamail POP3 Downloader Hexamail Guard Hexamail Nexus
4 sections Read guide
Diagnosing Email Flow Issues with Exchange and Hexamail
A step-by-step troubleshooting guide for diagnosing and fixing email flow problems between Hexamail and Exchange Server.
Hexamail Guard Hexamail Server Hexamail Nexus
6 sections Read guide
POP3 Email Routing – Automatically Route Emails from POP3 Accounts
How to download email from a POP3 or IMAP account and automatically route messages to different recipients within your organisation.
Hexamail POP3 Downloader Hexamail Guard Hexamail Nexus
4 sections Read guide
Email Sender Masking – Hide Individual Sender Addresses
How to configure email sender masking to hide individual employee email addresses behind a group address, with automatic reply routing.
Hexamail Guard Hexamail Server Hexamail Nexus
4 sections Read guide
Email to SMS Routing – Route Email as Text Messages
How to configure email to SMS routing to automatically forward incoming email as SMS text messages to mobile phones.
Hexamail Guard Hexamail Nexus Hexamail Server
4 sections Read guide
Security & Encryption (6)
Gmail App Password Setup – Connect Gmail with Third-Party Apps
Learn how to create a Gmail App Password to allow third-party email clients and applications to connect securely to your Gmail account.
Hexamail POP3 Downloader Hexamail Flow
1 sections Read guide
Microsoft 365 OAuth2 Authentication – XOAUTH2 Setup Guide
How to configure Microsoft 365 and Azure Active Directory to allow third-party apps to access email via IMAP, POP3 and SMTP using OAuth2.
Hexamail POP3 Downloader Hexamail Flow
3 sections Read guide
Secure Email – TLS, SSL, DKIM and DMARC Email Security Guide
A comprehensive guide to securing your email with TLS/SSL encryption, DKIM signing, SPF and DMARC to protect against interception and spoofing.
Hexamail Guard Hexamail Server Hexamail Nexus
9 sections Read guide
SSL/TLS Email Encryption – Securing Your Email Server
A complete guide to configuring SSL/TLS encryption on your email server for secure SMTP, IMAP and POP3 connections.
Hexamail Guard Hexamail Server Hexamail Nexus
8 sections Read guide
Setting Up STARTTLS for Encrypted Email – Step-by-Step Guide
How to configure STARTTLS on your email server to enable opportunistic TLS encryption for all SMTP connections.
Hexamail Guard Hexamail Server Hexamail Nexus
7 sections Read guide
Enforcing TLS 1.2 for Email – Upgrade Your Server Security
How to configure your email server to require TLS 1.2 or higher for all encrypted connections, retiring older insecure TLS versions.
Hexamail Guard Hexamail Server Hexamail Nexus
4 sections Read guide
Installation & Setup (5)
Installing Hexamail on Linux – Step-by-Step Guide
Complete guide to downloading, installing and configuring Hexamail products on Linux (CentOS, Ubuntu, RedHat).
Hexamail Guard Hexamail Server Hexamail Nexus
9 sections Read guide
Setting Up a Linux Mail Server – Complete Guide
How to set up a full-featured Linux email server using Hexamail Server, including SMTP, IMAP, POP3 and webmail.
Hexamail Server Hexamail Guard
8 sections Read guide
How to Set Up Your Own Email Server – Home and Small Business Guide
A beginner's guide to setting up your own email server at home or for a small business, covering requirements, installation and configuration.
Hexamail Server Hexamail Guard
7 sections Read guide
Remote Administration for Hexamail on Windows and Linux
How to set up and use the Hexamail remote administration client to manage your Hexamail server from a different machine.
Hexamail Guard Hexamail Server Hexamail Nexus
7 sections Read guide
Installing Hexamail on Windows – Step-by-Step Guide
Complete guide to downloading, installing and configuring Hexamail products on Windows Server and Windows desktop.
Hexamail Guard Hexamail Server Hexamail Nexus
6 sections Read guide
Archiving & Compliance (4)
GDPR Subject Access Request Guide – Handling SAR Email
A practical guide to handling GDPR Subject Access Requests involving email data, including how to locate, filter and redact personal data.
Hexamail Flow Hexamail Vault
9 sections Read guide
Guide RGPD – Traitement des Demandes d'Accès aux Données par Email
Guide pratique pour traiter les demandes d'accès aux données RGPD impliquant des emails, y compris la localisation, le filtrage et la rédaction des données personnelles.
Hexamail Flow Hexamail Vault
9 sections Read guide
POP3 Email Archiving – Archive POP3 Accounts with Hexamail Vault
How to archive email from POP3, IMAP, Gmail and Office 365 accounts using Hexamail Vault for compliance and backup.
Hexamail Vault
5 sections Read guide
Sarbanes-Oxley (SOX) Email Compliance – Email Archiving for SOX
How to achieve Sarbanes-Oxley (SOX) email compliance using Hexamail Vault for email archiving, retention policies and audit trails.
Hexamail Vault
1 sections Read guide
Redaction & Privacy (5)
How to Redact Email for GDPR Subject Access Requests
A complete guide to redacting email content and attachments for GDPR Subject Access Requests (SAR) using Hexamail Flow.
Hexamail Flow
7 sections Read guide
How to Redact an Email in Outlook to Protect Your Privacy
Learn how to securely redact sensitive information from emails in Outlook using Hexamail Flow, to comply with GDPR and privacy regulations.
Hexamail Flow
1 sections Read guide
Email Redaction Guide – Redacting Personal Data from Email
How to redact personal data and sensitive information from email and attachments for GDPR, SAR and legal compliance.
Hexamail Flow
7 sections Read guide
Redacting Email in Outlook – GDPR Compliance Guide
Step-by-step guide to redacting email and attachments exported from Outlook for GDPR Subject Access Request compliance.
Hexamail Flow
7 sections Read guide
Redacting Email in PST Files – GDPR PST Redaction Guide
How to import, filter and redact personal data from Outlook PST files for GDPR compliance and Subject Access Requests.
Hexamail Flow
7 sections Read guide
Migration & Import (5)
Migrating Exchange Mailboxes to Hexamail Server
Step-by-step guide to migrating all mailboxes from Microsoft Exchange to Hexamail Server using the built-in migration tool.
Hexamail POP3 Downloader Hexamail Server Hexamail Vault
6 sections Read guide
Importing IMAP Mailboxes into Hexamail Server
Step-by-step guide to importing all IMAP mailboxes and folders from an existing mail server into Hexamail Server.
Hexamail POP3 Downloader Hexamail Server Hexamail Vault
6 sections Read guide
IMAP Migration – Move Email Between IMAP Servers
How to migrate email from one IMAP server to another, including Gmail, Yahoo, Hotmail and self-hosted servers, preserving all folders.
Hexamail POP3 Downloader
7 sections Read guide
Upgrading from Windows Live Mail – Import Guide
How to upgrade from Windows Live Mail to Hexamail Flow, including importing all your existing email accounts and archived email.
Hexamail Flow
5 sections Read guide
Migrating from Microsoft Small Business Server to Hexamail Server
How to migrate from Microsoft Small Business Server (SBS) to Hexamail Server, including mailbox migration, user import and configuration.
Hexamail POP3 Downloader Hexamail Server Hexamail Vault
5 sections Read guide
Email Clients (1)
Best Email Client for Windows – A Complete Comparison
Compare the best Windows email clients including Hexamail Flow, Outlook, Thunderbird and more. Find the right email client for your needs.
Hexamail Flow
1 sections Read guide
Email Protocols (2)
Setting Up SSL/TLS and STARTTLS for Secure Email
A complete guide to setting up SSL, TLS and STARTTLS on your email server to enable encrypted SMTP, IMAP and POP3 connections.
Hexamail Guard Hexamail Server Hexamail Nexus
8 sections Read guide
SMTP – Simple Mail Transfer Protocol Explained
A guide to SMTP (Simple Mail Transfer Protocol), how email delivery works, and how to configure SMTP for your email server.
Hexamail Guard Hexamail Server Hexamail Nexus
1 sections Read guide
Developer & API (2)
Setting Up Email Webhooks – A Developer's Guide
Learn how to configure email webhooks to trigger HTTP callbacks when email is received, processed or sent.
Hexamail Nexus Hexamail Server
4 sections Read guide
Sending Email from a React JS Application – A Developer Guide
How to send email from a React JS application using an email API or SMTP service.
Hexamail Nexus Hexamail Server
4 sections Read guide

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