DNS propagation can cause temporary email delivery delays after DNS changes are made.
This is normal behavior and does not indicate a server failure.

Email delivery stabilizes automatically once propagation completes.

Why DNS Changes Affect Email #

Email relies on DNS records to determine:

• Which mail servers receive email
• Which servers are allowed to send email
• How receiving servers validate messages

When DNS records change, not all systems update at the same time.

Common DNS Changes That Affect Email #

Email delays often occur after:

• Updating MX records
• Changing SPF records
• Enabling or modifying DKIM
• Adjusting DMARC policies
• Switching DNS providers

Any email-related DNS change can trigger propagation.

What Happens During Propagation #

During propagation:

• Some emails may be delivered to old mail servers
• Some emails may be delayed or temporarily rejected
• Authentication checks may fail intermittently

These effects resolve once all caches update.

How Long Email Propagation Takes #

Email-related DNS propagation usually takes:

• A few minutes for some providers
• Up to 24 hours in most cases
• Up to 48 hours in rare cases

Timing depends on external mail servers and caching behavior.

What You Should Do During Email Delays #

You should:

• Wait for propagation to complete
• Avoid making repeated DNS changes
• Monitor email delivery gradually
• Inform users of possible delays if critical

Repeated changes restart the propagation process.

What You Should Not Do #

Do not:

• Assume Email Hosting is broken immediately
• Remove or re-add MX records repeatedly
• Change SPF or DKIM multiple times
• Open multiple support tickets for the same change

Propagation delays are outside ProRedLine’s control.

Testing Email During Propagation #

To test delivery:

• Send test emails from different providers
• Check webmail regularly
• Review bounce messages carefully

Results may differ during propagation.

Email Queuing and Delivery #

Most mail servers:

• Retry delivery automatically
• Hold emails temporarily if delivery fails

Once propagation completes, queued emails are usually delivered.

Responsibility Notice #

You are responsible for:

• Allowing sufficient propagation time
• Making correct DNS changes
• Understanding temporary email behavior

ProRedLine does not override DNS propagation behavior.