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Frequently Asked Questions (FAQs) about Hosted Email Security (HES) and IPv6

    • Updated:
    • 11 Oct 2021
    • Product/Version:
    • Hosted Email Security - Inbound Filtering 1.9.8
    • Hosted Email Security 1.9.8
    • Hosted Email Security 2.0
    • Platform:
    • N/A N/A
Summary

Find out the answers to the most common questions about HES support for IPv6.

Details
Public

Here are the frequently asked questions about HES support for IPv6:

  • Does HES support IPv6?
    HES currently does not support IPV6 feature.
  • If the mail server has IPv6 address, will it deliver the emails?
    If the server is dual stack and sending mails with IPv4, mail delivery will be okay.
  • If the customer wants to approve/block certain IPv6 addresses in IP reputation services, will HES work on IPv6 sources?
    No. This is not yet supported.
  • Will Mail Tracking and logs work and be displayed correctly?
    HES Mail Tracking and other logs currently do not support IPv6 display.
  • Is it possible to modify the MX record to point to AAAA?
    It is possible if we start to support IPv6 and then we will need to point to AAAA.
  • What happens if HES receives an email from an IPv6 source?
    The upstream IPv6 MTA cannot connect to HES, so HES will not accept the emails without any return/error code. In addition, the spam and anti-malware filters and policies will not be executed.
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Category:
Configure; Deploy
Solution Id:
1059517
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