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Email Forwarding: Challenges, Limitations, and Better Alternatives

Email forwarding is increasingly unreliable due to spoofing risks and authentication failures. Learn why forwarding causes delivery issues, what options exist, and why POP/IMAP “pull” methods are the best practice for secure email handling.

Garrett Saundry avatar
Written by Garrett Saundry
Updated this week

Email Forwarding: Challenges, Limitations, and Better Alternatives

Preface

Traditional email forwarding—where messages are “pushed” from one mailbox to another—has been widely used for decades. However, this method is increasingly falling out of favor because forwarded emails often exhibit characteristics similar to spoofed or fraudulent messages. These characteristics can trigger spam filters, cause delivery failures, and compromise email security.

This article explains:

  • The inherent challenges with traditional forwarding.

  • The concessions required to make forwarding work reliably.

  • Why using POP/IMAP tools to “pull” email into your preferred mailbox is now the recommended approach.


Why Forwarding Is Problematic

Forwarded emails often:

  • Rewrite the From address, making them look like spoofed messages.

  • Fail authentication checks (SPF, DKIM, DMARC), leading to rejection or spam classification.

  • Complicate reply handling, as responses may go to the forwarding address instead of the original sender.


How Webnames.ca Handles Forwarding

To maintain security and deliverability:

  • Outbound email must use a From address that matches the authenticated account (i.e. the email address in your From field must be the same email address (and password) set up in your email program).

  • Forwarding uses the “Send on Behalf Of” method, which:

    • Adds FWD: to the subject line.

    • Routes replies to the forwarding address, not the original sender.

What’s Not Affected

  • Aliases (forwarding from non-existent addresses) work as usual.

  • Intra-domain forwarding (within the same domain or Webnames-hosted accounts) remains unchanged and unaffected.


Best Practice: Use POP/IMAP Instead of Forwarding

Rather than pushing email from one account to another, use Remote POP or IMAP at your destination mailbox to pull messages from your Webnames.ca account. This approach:

  • Preserves authentication and avoids spoofing issues.

  • Ensures replies go to the correct sender.

  • Improves deliverability and security.

You can also configure Remote SMTP at your external provider to send replies using your Webnames.ca address.


Email Providers That Support Remote POP/IMAP (Mail Fetching)

Remote POP/IMAP allows you to pull email from one account into another, avoiding the issues of traditional forwarding. Below is a list of providers that explicitly support this feature.

Provider

Remote POP

Remote IMAP

Setup Guide URL

Notes

Gmail

Yes

No (POP only)

Zoho Mail

Yes

No (POP only for fetch)

Fetch interval ~10 min; up to 5 accounts

Fastmail

Yes

Yes

Supports ongoing IMAP sync; OAuth for Gmail

GMX Mail

Yes

Yes

“Mail Collector” supports POP/IMAP; multiple accounts


❌ Providers That Do NOT Support Remote Fetch

  • Outlook.com / Microsoft 365 – Connected Accounts removed July 2024

  • Yahoo Mail – No official ongoing fetch; only manual import

  • Apple iCloud – No POP; no remote fetch

  • AOL Mail – No remote fetch

  • Proton Mail – Import only (one-time), not continuous fetch


FAQ

Q: What is Remote POP/IMAP?
It’s a method where your destination mailbox periodically pulls messages from another account, instead of relying on forwarding. This avoids spoofing and improves deliverability.

Q: Why is this better than forwarding?
Forwarding rewrites headers and often fails SPF/DKIM checks, causing spam classification or rejection. POP/IMAP fetch preserves original authentication.

Q: Gmail still supports this?
Yes, until January 2026, after which Gmail’s Mail Fetcher will be retired.

Q: Which provider is best for ongoing fetch?
Zoho Mail, Fastmail, and GMX Mail currently offer robust remote fetch features.

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