Production Reports and Backups TLS Error

Resolution to TLS 1.0 and 1.1 error on sending production reports and backups

TLS, EmailBackup, Email, Backup Production_Reports_and_Backups_TLS_Error_.jpg

...Note: The email sending system only functions on version 6 software ONLY. There is no possibility it can be backwards engineered into older versions (Nextmove controllers) due to Microsoft Security updates

Background

The original code (v6.0.0.0-) used a proprietary email package to send SMTP messages. However a Microsoft Security Update forced a change to TLS 1.2 around the end of 2021.

The updated winMulti software (v6.4.94.1) uses an outlook email Nuget package EASendMail to send SMTP emails directly from inside the code. This uses the email account "machines@stuga.co.uk" on the Stuga 365 account. The code has a hard-coded licence for this app

Parameters are set up in params.saw by default as follows:

emailConnectType=1
emailPassword=Wuzo4848
emailPort=587
emailServer=smtp.office365.com
emailUser=machines@stuga.co.uk

Problem - TLS Message

Error message appears when attempting to send manually

Failed to send email 421.4.7.66 TLS 1.0 and 1.1 are not supported. Please update your client to support TLS 1.2....

Automatic production reports / backup files are not sent

The problem has happened due to Microsoft have changing some security provisions in office365 that mean we have to use TLS1.2.

https://aka.ms/smtp_auth_tls

Solution

New email client plugin needed for winMulti from EASendit with new licence

Working on a New Winmulti Update to work with TLS 1.2 Client

Update needed 6.4.94.1 due to licensing issues en none 0

Draft