If you're receiving an email where the sender's IP address is not available or visible, it's not necessarily a sign of something wrong. There are a few reasons why the sender's IP might not be shown:
Email Privacy Features: Some email providers and services use privacy features that strip out the sender's IP address from the header of the email. This is done to protect users' privacy.
Email Relays and Forwarding: If the email was sent through a relay or forwarding service, the original sender's IP might be replaced with the IP address of the relay or forwarding server.
Corporate or Institutional Email Servers: Emails sent from corporate or large organizational email servers often only show the IP address of the email server rather than the individual sender's IP.
Configuration Settings: Some email servers are configured not to include sender IP addresses in the headers to reduce the risk of revealing sensitive information.
If you're concerned about the legitimacy of the email or the sender, it's always good practice to be cautious with unexpected emails, especially those requesting personal information or containing links and attachments. Always verify the sender through alternative means if possible.