Problem solved by downgrading to 10.42, hope for a fix in future versions

Server error is: Exception type: MissingFieldException Exception message: Field not found: 'MailEnable.MIME.MIMEBoundary.HeaderValues'. at MailEnable.Messages.MailMessage.CopyForwardFile_MIME(String& SourceFile, String& DestinationFile, String& RelativeDestinationPath) at MailEnable.Messages.MailMes...

After update the webmail environment cannot forward mails (reply is ok). A busy popup appears and gets error 500 in console from a server call.

Making a new calendar event and check ( send an email to each attendee) has the problems below: a) The receiver will see this message in his mail list without the Display Name. Users are used to see the display name, Instead the mail seems sent by the email address witch is confusing. (every mail se...

We face a strange issue with some mails being cc to our mailboxes. Example: An email is sent to A and cc to B (or sent to C and cc to A and B). A may get the mail but B not (and the opposite). Checking the logs are perfect. I can see 2 transactions and 2 different XXXXX..XXX.MAI files created one fo...

Security updates are made for a reason... security.
It is a bad practice to compromise whole server security for some cookies issues.

We are facing a new problem of instant session timeout when trying to login in webmail via Chrome, Chromium or Edge. Problem confirmed on Windows OS and MacOsX with latest version of Chrome 80.0.3987.149. The other problem is that not all PC have the issue, some can access it without a problem (with...

You can find it at the url kb4533010

It is not simple to just uninstall this update because its security for all the Framework. Fix it the right way

Further investigation in the updates reveals: https://support.microsoft.com/en-us/help/4533010/kb4533010 ASP.NET now emits a SameSite cookie header when HttpCookie.SameSite value is "None" to accommodate upcoming changes to SameSite cookie handling in Chrome. As part of this change, FormsAuth and Se...

We used to load the webmail interface in an iframe, in many tailormade web based CRMs, providing login/pass via URL parameters. It worked fine until today. After latest 10 Dec 2019 Windows Update (on Server 2012) we get a session timeout message as soon as the iframe loads. The problem occurs only i...

In webmail when we try to search within Sent subfolders there is option for From field but not for To field.
Sent mails are most of the times sent by one account so From field is obsolete.
In the Sent folder searching using To field is an option but not in the subfolders.

We addressed a strange issue when he tried to send an email, send button became gray and nothing was send, no error message, no error log. So we were troubleshooting a user who cannot send mail via webmail only (IMAP/SMTP were functioning perfectly) without a clue why this happening. After many days...

Everything working ok for months but suddenly we got a strange issue with a specific mailbox via webmail , when we click on send it turns gray and nothing happens (mail never send). The account can receive and send mail via smartphone and get via webmail. Anyone else facing something similar?