Reading time: 7 min · Last verified: August 2026 · SMTPedia editorial team
TPG Telecom is one of Australia’s largest telecommunications operators, but the @tpg.com.au email service was migrated in 2026 to The Messaging Company (TMC), an independent Australian mail provider. TPG no longer offers new email addresses to customers, and existing addresses now run on TMC infrastructure. To connect a migrated @tpg.com.au mailbox to Outlook, Thunderbird, Apple Mail, or a mobile client, use the new TMC settings below with your existing @tpg.com.au email password.
Old TPG mail servers no longer work, and POP3 with “delete from server” can cause permanent data loss. In 2026, TPG migrated all @tpg.com.au email accounts to The Messaging Company (TMC). Configurations still using imap.tpg.com.au, pop.tpg.com.au, or smtp.tpg.com.au stopped working. New settings use imap.themessagingco.com.au, pop.themessagingco.com.au, and smtp.themessagingco.com.au. TMC explicitly warns that POP3 with the “delete from server after retrieval” option enabled can result in permanently lost mail they cannot recover, so IMAP is strongly recommended over POP3. Reference: SMTP 550 5.7.1 guide.
Quick Reference: TPG.com.au Server Settings (post-TMC migration)
Use these values verbatim. These are the current TMC servers that host all migrated @tpg.com.au addresses. Older TPG-branded servers are decommissioned.
| Protocol | Server | Port | Encryption | Authentication |
|---|---|---|---|---|
| SMTP (outgoing, most common) | smtp.themessagingco.com.au | 465 (SSL) or 587 (STARTTLS) | Required | Full @tpg.com.au email + password |
| IMAP (incoming, strongly recommended) | imap.themessagingco.com.au | 993 | SSL/TLS | Full @tpg.com.au email + password |
| POP3 (incoming, use with caution) | pop.themessagingco.com.au | 995 | SSL/TLS | Full @tpg.com.au email + password |
TPG.com.au SMTP Settings (Sending Mail)
SMTP handles outbound mail. Server smtp.themessagingco.com.au on port 465 SSL is the standard configuration. Port 587 STARTTLS works as an alternative when 465 is blocked by a network. Authentication uses the full @tpg.com.au email address as username and your existing TPG mailbox password, which was preserved during the TMC migration.
Port 25 outbound is blocked on Australian consumer ISPs. Consumer SMTP has undocumented rate limits typical of a Tier-1 mail provider. Heavier transactional sending needs a dedicated SMTP relay outside the TMC consumer mailbox.
TPG.com.au IMAP Settings (Recommended for Reading)
IMAP syncs folder state across every device. Server imap.themessagingco.com.au on port 993 SSL/TLS. IMAP is TMC’s explicit recommendation over POP3 for all users because of the POP3 data-loss risk documented in the gotcha above. Folder names appear in English, and IMAP folder attributes let Outlook, Apple Mail, and Thunderbird map them to Sent, Drafts, and Trash correctly.
TPG.com.au POP3 Settings (Use with Caution)
POP3 downloads mail to one device with no server-side sync. Use pop.themessagingco.com.au on port 995 SSL/TLS. TMC explicitly warns that POP3 with the “delete from server after retrieval” option enabled can cause permanent data loss they cannot recover. If you must use POP3, disable the delete-from-server option in your client so retrieved mail also remains on the TMC server as a safety net. IMAP is safer and is the recommended default.
IMAP, POP3 and SMTP Integration into Gmail
Configure Gmail with external IMAP/POP3/SMTP to send/receive emails from your custom domain through Gmail’s interface. Perfect for professionals managing multiple accounts in one place.
- Google Account β Security β App passwords (2-Step Verification must be enabled).
- Generate App Password for “Mail” β copy 16-character password.
- Gmail β Settings β See all settings β Forwarding and POP/IMAP.
- Enable IMAP β Save Changes.
- Incoming (IMAP):
[IMAP SERVER]:993 SSL| Outgoing (SMTP):[SMTP SERVER]:587 STARTTLS. - Use your full email + App Password (not regular password) for authentication.
β Gmail Result: Send/receive custom domain email directly in Gmail interface with full search/folder integration.
WordPress SMTP Plugin Configuration (WP Mail SMTP + MailPoet)
Configure SMTP in WordPress to fix email delivery issues and prevent spam folder placement. WP Mail SMTP and MailPoet ensure reliable transactional emails, contact forms, and newsletters deliver successfully.
- Install and activate WP Mail SMTP or MailPoet plugin from your WordPress dashboard.
- Navigate to WP Mail SMTP β Settings or MailPoet β Settings β Sending tab.
- Select “Other SMTP” as your mailer method from the dropdown.
- Enter SMTP settings with Port
587and STARTTLS encryption (when available). - Input your full email address and password in the authentication fields.
- Click Save Settings and send a test email to verify the configuration works.
β Result: WordPress contact forms, user registrations, and newsletter emails now deliver reliably via your SMTP server.
This configuration includes these plugins and tools within WordPress:
- HappyForms
- Elementor Forms
- Gravity Form
- WooCommerce Checkout Form
- Contact Form by BestWebSoft
- Fluent Forms
- Contact Form 7
- WPForms
- Ninja Forms
- Default WordPress Reg Form
- Forminator Forms
- Formidable Form
- WordPress Comment Form
- Mail Mint Form
Thunderbird OAuth2 Email Setup (IMAP + SMTP)
Secure IMAP & SMTP using OAuth2 token authentication in Thunderbird. This modern method eliminates password storage for enhanced security.
- Open Thunderbird β Account Settings β Account Actions β Add Mail Account.
- Enter your email address and click Continue to begin setup.
- Select IMAP protocol and choose OAuth2 authentication method.
- Thunderbird opens a browser window β log in to your provider β Grant access permissions.
- Automatic configuration applies: Incoming: use the IMAP server address from the settings table above, port 993, SSL
- Click Done β Thunderbird begins syncing folders and emails immediately.
OAuth2 advantage: Token-based authentication enhances security over traditional password methods while maintaining full functionality.
Outlook IMAP, POP3 & SMTP Setup (Auto + Manual)
Outlook configuration supports both automatic server detection and manual IMAP/POP3/SMTP settings for complete control over your email setup.
π Auto Setup (Recommended):
- Go to File β Add Account β Enter your email address + password.
- Outlook automatically detects IMAP, POP3, and SMTP server settings.
- Click Connect β setup completes in approximately 30 seconds.
βοΈ Manual Setup (Advanced Users):
- Authentication: Use your full email address + password for both servers
BlueMail Two-Factor Authentication + OAuth2 Setup
BlueMail security setup combines OAuth2 authentication with two-factor authentication (2FA) for maximum account protection.
- Open BlueMail β Account Settings β Security β Enable Two-Factor Authentication.
- Link your phone number or authenticator app for 2FA verification codes.
- Add email account β Choose OAuth2 or manual server configuration.
- Enter server details from the table above
- Complete login with 2FA code β enhanced security layer activated.
Apple Mail IMAP Configuration (iCloud + Manual)
Setup IMAP in Apple Mail for seamless synchronization across Mac, iPhone, and iPad devices with full folder support.
- Open Apple Mail β Mail β Add Account β Other Mail Account.
- Enter your name, email address, and password β click Continue.
- Select IMAP account type β Incoming server.
- Next: Outgoing server
- Click Sign In β Mail verifies settings and begins folder synchronization.
iOS Mail App Setup (iPhone/iPad)
iPhone/iPad Mail configuration syncs IMAP folders across all Apple devices with native push notifications.
- Go to Settings β Mail β Accounts β Add Account β Other.
- Enter name, email, password β Next.
- Account Type: IMAP β Incoming:
[IMAP SERVER]Port993SSL. - Enter your outgoing SMTP server and port.
- Next β Save β iOS verifies and syncs immediately.
Push enabled automatically: new emails appear instantly on Lock Screen.
Android Mail App Configuration
Android Gmail/Email app setup works with any IMAP/SMTP provider for native device integration.
- Go to: Settings β Accounts β Add Account β Email (or Gmail app).
- Enter email + password β Next.
- Account Type: IMAP
- Outgoing server details β Require authentication.
- Next β Sign In β Android syncs contacts/calendar if enabled.
Sync interval: 15min default (battery optimized) – change in Account Sync settings.
eM Client Manual IMAP & POP3 Sync Configuration
Configure your email settings on eM Client with either automatic setup or through precise IMAP/POP3 server settings for reliable email synchronization and full folder support.
- Click New Account β Mail
Authentication requires full email address + password for both incoming and outgoing servers.Click Next β Finish β Send/Receive All Folders to begin synchronization.
Mailbird OAuth2 IMAP & SMTP Integration
Secure Mailbird setup using OAuth2 authentication eliminates password storage while providing full IMAP/SMTP functionality.
- Mailbird β Add Account β Enter your email address to begin.
- Choose Manual Setup β OAuth2 authentication method from options.
- Browser opens your provider’s login page β enter credentials β Authorize Mailbird.
- Mailbird receives access token and automatically configures IMAP/SMTP servers.
- Setup completes β full email synchronization begins automatically.
Mailspring OAuth2 IMAP Configuration
Mailspring OAuth2 setup provides secure email access without storing passwords directly in the application.
- Add new email account β Select Custom IMAP configuration option.
- Incoming
IMAP SERVERand outgoingSMTP SERVER. - Mailspring prompts OAuth2 authorization via browser window for secure login.
- Log into your provider account and grant Mailspring access permissions.
- Mailspring automatically manages authentication tokens β seamless email access established.
Postbox Manual IMAP Synchronization
Postbox IMAP setup with manual synchronization control for precise email folder management and immediate updates.
- Add IMAP account β Enter IMAP Server details.
- Outgoing SMTP with full email authentication.
- Postbox connects and displays folder structure automatically.
- Right-click any folder β Get Messages for immediate manual synchronization.
- Manual sync updates local mailbox instantly with server changes (read status, deletions, organization).
SendBlaster SMTP Configuration (Bulk Email)
Bulk email SMTP configuration in SendBlaster requires precise server authentication for reliable campaign delivery.
- Open SendBlaster β Settings β SMTP Configuration section.
- Enter SMTP Server and Port: do not forget to Enable TLS encryption.
- Authentication: Your full email address + password (required).
- Click Test Connection β verify green success indicator appears.
- Save settings β SendBlaster ready for bulk email campaigns and newsletters.
MailJerry IMAP Real-Time Synchronization
MailJerry IMAP setup enables real-time access to email folders stored on your provider’s server across all devices.
- Incoming Server and encryption required.
- Authentication: Full email address + password for secure connection.
- Enable real-time folder synchronization settings in MailJerry preferences.
- Folders update instantly with new messages, read status, and deletions across devices.
Clean.email OAuth2 Synchronization Setup
Clean.email OAuth2 setup provides secure mailbox access without sharing passwords directly with the application.
- Add new account β Select OAuth2 authorization method.
- Your provider opens login portal β enter credentials securely.
- Grant Clean.email permissions for email read/write access.
- OAuth2 token enables real-time message management, filtering, and organization.
- Setup complete β Clean.email maintains secure, ongoing mailbox synchronization.
Common IMAP/POP3/SMTP Troubleshooting
- Authentication failed: Always use your complete email address, never just the username portion.
- Port blocked by ISP: Try alternative SMTP port as fallback.
- SSL certificate errors: Ensure certificate validation is enabled in client settings.
- Slow or no IMAP sync: Check folder subscriptions and enable all folders in client settings.
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Frequently Asked Questions
My email stopped working, what happened?
In 2026, TPG Telecom exited the consumer email business and migrated all @tpg.com.au mailboxes to The Messaging Company (TMC). If your Outlook, Thunderbird, or Apple Mail suddenly started throwing connection errors, this is why. Update your configuration to point at imap.themessagingco.com.au, pop.themessagingco.com.au, and smtp.themessagingco.com.au instead of the old tpg.com.au hostnames. Your email address and password remain unchanged, only the server hostnames need updating.
Can I still get a new @tpg.com.au address?
No. TPG stopped offering new email addresses when it exited the email business in 2026. Only pre-existing @tpg.com.au addresses (migrated to TMC) remain active. If you need a new Australian mail address, consider a mainstream provider such as iCloud, Gmail, Outlook.com, or an ISP-bundled option from another Australian telco. Existing @tpg.com.au mailboxes continue to work indefinitely under TMC as long as they are actively used.
Why did TMC warn about POP3 data loss?
POP3 is a fetch-and-delete protocol by default. Many email clients ship with “delete from server after retrieval” enabled, meaning messages are removed from the server as soon as they arrive on your device. If your device is later lost, wiped, or the mailbox file corrupts, the messages are gone permanently, TMC has no server copy to restore. IMAP keeps the authoritative copy on the server and syncs local copies, so device loss does not equal mail loss. TMC’s guidance is to use IMAP for all users unless you have a specific single-device offline archival requirement.
How do I reset my @tpg.com.au email password after the TMC migration?
Use the TMC self-service portal or password reset flow published in the TMC customer support pages. Recovery goes through the contact details TPG transferred to TMC during the migration. If your recovery details are out of date or you cannot access the reset flow, contact TMC support directly (linked from tpg.com.au email support pages) rather than TPG Telecom, since TPG no longer administers the mailboxes.
How secure is TPG.com.au email in transit under TMC?
TMC enforces SSL/TLS on all encrypted mail ports (993, 995, 465), so client-to-server transport is protected. Port 587 uses STARTTLS opportunistic encryption after connection. TMC infrastructure is Australian-hosted, keeping data under Australian jurisdiction. Native 2FA on IMAP or SMTP is not offered. Server-to-server transport follows standard SMTP with STARTTLS. For end-to-end message encryption use S/MIME or PGP client-side. Related: SMTP connection guide.
Other Australian email providers’ settings also include:
Optus Email Settings · BigPond (Telstra) Email Settings · iiNet Email Settings
About This Guide
The TPG.com.au email settings on this page were last verified on August 12, 2026 against The Messaging Company’s official server settings documentation, TPG’s migration notice, and independent Australian IT support guides. Email server configurations rarely change once established, but the 2026 TPG-to-TMC migration is a genuine major update worth propagating. SMTPedia re-verifies these settings quarterly and after any announced changes from TMC or TPG. If you find a discrepancy between what is documented here and what TMC currently requires, please report it so we can update the reference.
About the Author
Alaa Β· LinkedIn
Email infrastructure specialist with 8+ years of hands-on experience in SMTP, deliverability, and email verification. Iβve configured and troubleshot mail systems across Postfix, Exchange, and cloud relays, managed IP reputation and warmup campaigns, and built verification pipelines processing millions of addresses. My work spans DNS authentication (SPF, DKIM, DMARC, BIMI), bounce handling, blocklist monitoring, and compliance frameworks including CAN-SPAM and GDPR. I write every article on SMTPedia to give email professionals, developers, and marketers the accurate, RFC-grounded reference they need.
About SMTPedia
SMTPedia is an independent email industry reference covering SMTP, IMAP, POP3, email deliverability, marketing platforms, DNS authentication, and email verification. Every article is researched from official provider documentation, IETF RFCs, and industry best practices. Settings and configurations are verified quarterly.
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