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Business Central / NAV UG
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SMTP error when releasing purchase orders
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SMTP error when releasing purchase orders
We are on NAV 2015 and when a purchase order is released, NAV attempts to use SMTP to email the PO approvers. This morning our purchasing team started getting this error when they try to release.
Our SMTP settings are using anonymous authentication, port 25 via mail.protection.outlook.com. This has worked fine for years.
From my google searching, this has to do with the 2023 TLS 1.0/1.1 EOL. But I remember my NAV Partner checked with me over screen share that we are not using these.
I welcome any advice. TIA
I also don’t remember how to find the TLS settings for NAV…
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4 Replies
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I remember the TLS issues as we are on NAV 13 (currently upgrading) and our Avatax add-on was going to stop working. @chris-warren do you know anything about this?
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I’m not too familiar with that particular error, but I know we had some issues using SMTP and anonymous authentication when we were on NAV 2017. I think you might be correct @heatherwalters in that it could be due to the deprecation of that feature from MS. We had some other systems where SMTP stopped working recently, and updating them to not use anonymous authentication solved our issues.
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