2014年5月22日 · IMCEA lets Exchange 5.0 send emails from a user with a X.400 address to an external SMTP address by encapsulating the X.400 address within an IMCEA encapsulated SMTP address. It also let the user receive SMTP emails …

Office 365 users - can we delete legacy X400 and X500 addresses from users proxyaddresses? Company used to use Exchange on premises, but now using Office 365. I've noticed that accounts that predate the move to Office 365 still have X400 and X500 addresses in their proxyAddresses attribute against their Active Directory account, in addition to ...

2020年2月5日 · I checked our on-premises Exchange server email address policies, none of them include x500 adddress, though x400 address exists in the address policies. In which scenario the same user’s user mailbox and mail contact object generate the same x500 proxy address?

During a linked mailbox migration i find x400 and x500 addresses on my mailbox. What are those and do I really need them? Is it some internal domain stuff? Thanks. Always considered them legacy from old 2000/2003 times.

X.500 is a series of computer networking standards covering electronic directory services. The X.500 series was developed by the Telecommunication Standardization Sector of the International Telecommunication Union (ITU-T) and was first approved in 1988. [1] .

An X.400 address is technically referred to as an Originator/Recipient (OR) address. It has two purposes: Mailbox identification – either the originator or recipient. Global domain identification – where a given mailbox is located. 1984 defined an OR address as an X.400 address that identified where the user is located.

x．400由iso(国际标准化组织)和itu(国际电信联盟)开发；在欧洲和加拿大是流行的标准。 不同于SMTP，X．400是一套正式标准，有很多配置选项。 然而，SMTP与X．400之间争论远远没有结束。

2018年4月30日 · Learn more about How to Edit and Add a Legacy X500 Address Into The New Mailbox from the expert community at Experts Exchange

2014年6月30日 · To attach those old legacyExchangeDN addresses to an object in the new environment, add an X.500 entry to the proxy addresses (X.500 refers to the protocols built on the X.400 standard), for example: X500:/o=Contoso/ou=First Administrative Group/cn=Recipients/cn=UserA.

2022年9月7日 · From my research, X400 can be deleted without issues. However, many articles and forums (old ones) say deleting X500 will mess up appt, meeting, and cached addresses. Does this still hold true? While I'm at it, I've tested removing Target Address with no ill effects. Can someone confirm? Thanks. Archived post.