Fallback during retrieval

notempty

Dieser Artikel bezieht sich auf eine nicht mehr aktuelle Version!

notempty

Der Artikel für die neueste Version steht hier

notempty

Zu diesem Artikel gibt es bereits eine neuere Version, die sich allerdings auf eine Reseller-Preview bezieht

Problem retrieving emails after update to v3.3.0

Last adaptation to the version: 3.3 (03.2023)

New:

Updating the Affected UMA Versions

notempty

This article refers to a Resellerpreview

Affected UMA Versions

This Wiki article refers exclusively to UMA version 3.3.0! For UMA systems from version 3.3.1 onwards, refer to the wiki article Remote E-Mail Accounts.

Initial situation

If a TLS/SSL connection of a remote email account fails, an unencrypted connection may have been established as a fallback in previous versions.

In version 3.3 of the UMA, the transmission of unencrypted data is not permitted.

This leads to emails not being retrieved from some mail server systems.

Affected systems

Common with Tobit David servers

Partly with IBM Lotus Notes

Partly with outdated Exchange servers (2010)

Solution

Check the TLS/SSL connection of the mail server and set up proper StartTLS encryption if necessary.

If it is not possible to configure a correct TLS/SSL connection on the mail server,
no update to version 3.3.0 should be performed

If the update has already been performed, an updae to version 3.3.1 should be performed immedeatly.
As of version 3.3.1 the connection security can be disabled.

Under no circumstances should an immediate rollback be performed
(During the update, databases are rearranged).