MicrosoftMicrosoftPaulAndrew Steve Ianson Thanks for your response. Let me explain why they have blocked IP addresses restrictions for incoming emails. They have blacklisted IPs for all countries except US where they are to block all incoming emails from any country except US. We were using G suite but originally it was hosted on US region so there was no issue. since we migrate our service from G suite to Office 365 (Tenant Hosted in India) this issue started. Now they want a list of Exchange servers IP addresses range for India region and which URL provided by you and for SPF list of IPs is contained Worldwide IPs not for India Region only. Now they want to unblock India IPs only not for the Worldwide because if they do allow all then any Exchange Online users can send an email no matter from which country. And one more thing I have done to verify, Purchased another Tenant in US for testing purpose and send an email from India and it was delivered. That's why I am looking for only relevant list of IP addresses for India region.
Please let me know if you require any additional information.
Regards,
Ankit
