Sage 100 pre-2018 versions will need to upgrade by June 2020 if using Paperless Office for e-mails.
Microsoft plans to discontinue support for Transport Layer Security (TLS) versions 1.0 and 1.1 in Office 365 and Office 365 GCC as of June 2020. Sage will only update versions 2018 and 2019 to TLS 1.2+ which will cause older Sage 100 versions using paperless emailing problems once Microsoft disables TLS 1.0.
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