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10Hello
I'm trying to send bulk emails with attachments using SMTP Office 365 on NAV2015 with CU43. I use NAV SMTP Add-In. I already tried with Codeunit 400 code or similar to change Timeout.
If I try to use test function on SMTP Setup Page, it works with no problems. I'm using default setups to Office365 (port 587, included). My routine is a report based on Sales Invoice Header and when I send one email only, no errors occurs. When I send a few emails, most of the times occurs the error "Failure Sending Mail. Unable to read data from the transport connection; net_io_connectionclosed".
Who can help me with this issue?
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