Argument Exception while reading EML file (C# .NET)

I get the following exception
‘UTC offset value must be signed. UTC offset [0200] - must be of the form: (+/-)HHMM[SS]’’
when I try to load a MailMessage from Exchange-Server or when trying to opening the corresponding EML-File.

I guess it is related to the calendar-entry inside.
The eml file can be opended with Outlook 2016 without any issues.

-------- EML-File-Content to reproduce the error------------------
Received: from SMAIL01.wstw.energy-it.net ([fe80::91bd:4b20:31d7:88d8]) by
SMAILHC1.wstw.energy-it.net ([fe80::a944:4a29:c117:a799%11]) with mapi; Sat,
31 Dec 2011 10:59:31 +0100
From: Test Test@test.at
To: Test2 test2@test2.at
Subject: Zugesagt: MDMS - Workshop (LB & BB)
Thread-Topic: MDMS - Workshop (LB & BB)
Thread-Index: AczHouPyVLuv4qcWQ/2CRmZLSgdktQ==
X-MS-Exchange-MessageSentRepresentingType: 1
Date: Sat, 31 Dec 2011 10:59:21 +0100
Message-ID:
5671A6F4615E954A82EE810DA7E88354322E5BE189@SMAIL01.wstw.energy-it.net
Accept-Language: de-DE, de-AT
Content-Language: de-AT
X-MS-Exchange-Organization-AuthAs: Internal
X-MS-Exchange-Organization-AuthMechanism: 04
X-MS-Exchange-Organization-AuthSource: SMAILHC1.wstw.energy-it.net
X-MS-Has-Attach:
X-MS-Exchange-Organization-SCL: -1
X-MS-TNEF-Correlator:
X-MS-Exchange-Organization-RecordReviewCfmType: 0
Content-Type: multipart/alternative;
boundary=“002_5671A6F4615E954A82EE810DA7E88354322E5BE189SMAIL01wstwen”
MIME-Version: 1.0

–002_5671A6F4615E954A82EE810DA7E88354322E5BE189SMAIL01wstwen
Content-Type: text/plain; charset=“iso-8859-1”
Content-Transfer-Encoding: quoted-printable

–002_5671A6F4615E954A82EE810DA7E88354322E5BE189SMAIL01wstwen
Content-Type: text/calendar; charset=“utf-8”; method=REPLY
Content-Transfer-Encoding: base64
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–002_5671A6F4615E954A82EE810DA7E88354322E5BE189SMAIL01wstwen–

@Markus1980Wien,

Can you please share source file along with complete sample code so that we may further investigate to help you out.

MBU.zip (1.6 KB)

Aspose.Email.MailMessage mm = Aspose.Email.MailMessage.Load(@“c:\mbu.eml”);

@Markus1980Wien,

I have worked with the sample file shared by you and have been able to observe the issue. An issue with ID EMAILNET-39512 has been created in our issue tracking system to investigate and resolve the issue. This thread has been linked with the issue so that you may be notified once the issue will be fixed.

The issues you have found earlier (filed as EMAILNET-39512) have been fixed in this update.