Cannot/Unable to send emails, invoices etc from Sage 100

Solution Properties

Solution ID:

225924650093322

Last Modified Date:

Mon Aug 28 14:22:16 UTC 2023

Taxonomy Path:

Category//Setup and configuration

Author:

[email protected]

Cannot/Unable to send emails, invoices etc from Sage 100

Description

Cause

The e-mail engine used in Sage 100 2018 and lower use TLS 1.0. TLS (Transport Layer Security) which is a cryptographic security protocol designed to provide communications security over a computer network and over the Internet. TLS 1.0 and 1.1 standards are deprecated due to known security issues.

Major providers such as Apple, Google, Microsoft, Cisco, etc. have either discontinued use in favor of current TLS 1.2 standards, or have plans to do so in the immediate future.

Resolution

Note: Microsoft and other e-mail providers (Apple, Google/Gmail, Cisco, etc.) have discussed (or already implemented) discontinuing support for TLS 1.0/1.1 and will only support TLS 1.2 for email. Microsoft has rescheduled their implementation of this change for Office 365 e-mail several times. However, starting September 2021, they began in earnest.

Note: These links are to Microsoft web pages. Their contents are subject to change. Sage is not responsible for the content of external web links.

Microsoft: "We temporarily halted disablement of TLS 1.0 and 1.1 for commercial customers due to COVID-19. As supply chains have adjusted and certain countries open back up, we restarted the TLS 1.2 enforcement rollout on October 15, 2020. Rollout will continue over the following weeks and months..."
https://docs.microsoft.com/en-us/microsoft-365/compliance/tls-1.0-and-1.1-deprecation-for-office-365?view=o365-worldwide&preserve-view=true
Microsoft: "We are fully aware that many customers will not have noticed the multiple Message Center posts and blog posts, and are not aware of clients or devices that are still using TLS1.0 to submit messages. With this in mind, starting in September 2021, we will reject a small percentage of connections that use TLS1.0 for SMTP AUTH. Clients should retry as with any other temporary errors that can occur during submission. Over time we will increase the percentage of rejected connections, causing delays in sending that more and more customers should notice..."
https://techcommunity.microsoft.com/t5/exchange-team-blog/new-opt-in-endpoint-available-for-smtp-auth-clients-still/ba-p/2659652

Note: Other applications such as but not limited to Microsoft 365, Firewall & Antivirus programs may cause a similar symptom with email being blocked: either because the TLS version is not supported, other causes such as a failure in the SMTP Email Server, or a port blocked by a firewall, or anti-spam measures.

Note: Sage does not test Sage 100 with all e-mail services/programs/providers. Sage 100 Customer Support is not responsible for knowing the exact combination of program or provider, security or permission settings, inbound or outbound rules, account logins, passwords, bandwidth restrictions, etc. to enable successful e-mail delivery. The specifics of services, programs, and providers are subject to change. See related links for additional troubleshooting solutions.

Versions 2018 and older

1) Upgrade to the latest version of Sage 100 as the older versions did not support TLS 1.2 communication.

Versions 2019 and newer

Sage 100 2019 and above support TLS 1.2. No downloads are required.

DocLink: Does Sage have plans to stop supporting TLS 1.0 & 1.1 for Sage 100?
DocLink: Error: "Failed to read beginning of SSL/TLS record" and "Failed to establish TLS connection" when attempting Test e-mail

[BCB:155:Chat 100 US:ECB]

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