Delayed or undelivered transactional emails from ******@finsure.com.au

Question

Hello Microsoft Support,

I am experiencing delayed or missing transactional emails to my Outlook.com account (******@outlook.com).

The sender is ******@finsure.com.au.

Details:

• Verification emails are sometimes delivered hours later in bulk.
• One verification email sent at 9:26 AM (UTC+0800) has not been delivered at all.
• Other email providers receive these emails immediately.
• The sender is added to Safe Senders.
• No rules are configured in the mailbox.
• The issue only affects this Outlook.com account.

This appears to be a server-side delay, filtering, throttling, or greylisting issue.

Could you please:

1. Check whether emails from ******@finsure.com.au are being delayed or filtered.
2. Confirm if there are reputation or anti-spam restrictions affecting this sender.
3. Advise whether any mailbox-level configuration is causing delayed delivery.

Thank you.

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移自 Microsoft 365 和 Office | 其他

Answer 1

finsure.com.au 看起来是Microsoft 365企业邮箱，即Exchange Online邮箱哦。