Access Office356 shared mailbox with PHP
Solution 1
Try using the account alias
%USERUPN%/%SHAREDALIAS% for example:-
[email protected]/sharedbox
where "sharedbox" is the alias of the shared mailbox instead of the full email address
I've seen different reports of some people using forward slash ( / ) and some using a backslash ( \ )
Edit
Are you using the mailbox alias? Do not use [email protected]
Exchange Configuration:
USER EMAIL: [email protected]
PASSWORD: password
SHARED MAILBOX: [email protected] (could also be @domain.com, of course)
SHARED MAILBOX ALIAS: shared-mailbox
Note: Please make sure to create the UNIQUE alias always with the mailbox, because it creates the user [alias]@maindomain.com. In this case [email protected]
Settings for IMAP Configuration:
EMAIL ADDRESS: [email protected] (shared mailbox)
IMAP SERVER: outlook.office365.com
SMTP SERVER: smtp.office365.com
USERNAME: [email protected]\shared-mailbox (user\shared mailbox alias)
PASSWORD: password (user's password)
Solution 2
Another solution that worked for us is to add the username data to the mailbox parameter using the appropriate flags.
For example, with the Office 365 configuration of
USER EMAIL: [email protected]
PASSWORD: password
SHARED MAILBOX: [email protected]
then the imap_open call would be
imap_open("{outlook.office365.com:993/imap/ssl/[email protected]/[email protected]}", "[email protected]", "password");
Note the inclusion of the main user email using the /authuser flag and the shared mailbox using the /user flag.
That worked for us when the mailbox alias approach in the previous answer was not successful.
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Surya
Updated on June 04, 2022Comments
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Surya about 2 years
I'm working on a PHP script to read and parse error logs sent to a shared mailbox.
I'm using imap_open() to connect.
If I connect with the following credentials to my own mailbox, it works fine
server: {outlook.office365.com:993/imap/ssl} username: [email protected] password: mypas$word
However, if I want to connect to the sared mailbox with the follwowing credentials, I get an error
server: {outlook.office365.com:993/imap/ssl} username: [email protected]\[email protected] password: mypas$word
The error is the following:
User is authenticated but not connected. (errflg=2)
According to my research that would mean I'm using the wrong password, but since it works when connecting to my own inbox, it can't be wrong
I am a 100% certain my account can access the shared mailbox, I can access it via my account through the Office 365 webinterface
One more detail: my password includes a $ sign, but that shouldn't matter. I use single quotes on the password and escaping the $ sign doesn't help, it results in a failed login even for my personal mailbox.
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Surya over 9 yearsThanks, but that resulted in a
imap_open(): Couldn't open stream {outlook.office365.com:993/imap/ssl}
. Changing the \ to / doesn't seem to make a difference. -
Surya over 9 yearsI don't have access to the configuration so I've contacted the people who do. I'm not sure if there is an alias configured.
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Surya over 9 yearsthe alias is currently the same as the name of the inbox, and that doesn't work. I've requested to change the alias to something different
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Surya over 9 yearsWe finally got this to work by adding
array('DISABLE_AUTHENTICATOR' => 'PLAIN')
to theimap_open
string. We did also have to create a new shared mailbox, something was wrong with the config of the first one and we couldn't get it to work there. -
Surya about 9 yearsThanks but that doesn't work for me. I think this only works for certain server configurations. I get:
Can't do /authuser with this server
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Ben Sommerville about 9 yearsThere is definitely something specific to the server. FYI this was to connect to an Office 365 Business (Enterprise) account. I tried every other approach I could find on the internet or think of and this was the only one that worked for this particular case. There is something about the combination of php imap and exchange/O365 that doesn't play well together :(
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Teun over 6 yearsWorked for me, but I used the INBOX suffix for the server address
{outlook.office365.com:993/imap/ssl/authuser=fulluser@email.com/user=fullshared@mail.com}INBOX
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NicoMinsk over 5 yearsWorked for me too, but after also added charset 'US-ASCII', to use imap_search with office365