[Kris Van Cauwenberge]

Mail retrieval via POP3Oauth2 on Microsoft 365 mailboxes started to fail a few weeks ago after running for several years without any issue. Getting Protocol error 14:

Net::POP3::_SSL=GLOB(0x55a89d55f328)<<< ********ERR Protocol error. 14
Net::POP3::_SSL=GLOB(0x55a89d55f328)>>> LIST
Net::POP3::_SSL=GLOB(0x55a89d55f328)<<< ********ERR Command is not valid in this state.

After switching to IMAPOAuth2, mails are again retreived correctly.

Drawback is that IMAPOAuth2 requires a more expensive 365 license.

Is this an known issue that can/will be solved in a newer version of the  MailAccount-OAuth2 package? Currently running package version 10.1.1.

[marcel-graf]

Hello Kris,

we use also IMAPOAuth2 and the Account has a Exchange Online (Plan 1).

KR,

Marcel

[Arnold]

Hi Kris,

if there is a newer version of the package offered for installation, I suggest you do so.

My last info is that Microsoft requests a licenced user and than provides POP3 and IMAP that same. If oboto has not changed for you and suddenly does not work, I would take it up with the other end of the communicaiton. Please contact your support for more information. The error „Protocol error“ is very generic. It can not be fixed without more details. I suggest you issue a detailed bug report here: https://github.com/RotherOSS/mailaccount-oauth2

Best,
Arnold

[Autor]

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