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My company runs internal e-mail-traffic using Outlook 365. I prefer using a proper e-mail client (in my case: thunderbird) via IMAP and SMTP, which is no problem since the server adresses are provided in the Outlook 365 settings dialogue.

Now, I would also like to be able to use the contacts directory set up by the company. I presume the proper way to include such a contacts directory into thunderbird is using LDAP; however, it seems to me that there is no official LDAP address.

Is there an LDAP access to Office 365 contact directories, and where can I find its address?

Bubaya
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1 Answers1

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LDAP is an account directory protocol.

IMAP is a mail protocol.

IMAP does not have access to the 365 global address list (GAL). Only a mail program (like Outlook) which is connected to 365 via Exchange (ActiveSync) has access to this feature.

For Thunderbird to access a shared address book, it would need a CardDAV server. Microsoft does not offer CardDAV as an option.

Outlook has been a proper email client for decades. I am sure if you gave it a chance, it would perform well for you.

If you prefer Thunderbird, you will have to go without some features. Thunderbird is a great application, but it does not support 365 ActiveSync connections and with it the advanced features it brings.

Derek
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