I am doing task of Email Automation and I am facing this issue. Do you have any solution that HOW CAN WE RESOLVE THIS?
Check below for your reference
Also check any Antivirus / Firewall is blocking too
Hope this helps
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Thanks
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Check below link if it helps
Hi Nashra,
We have to validate below thing for it
Either way you are blocked by a firewall, or the 465 port you are using is the wrong port or your smtp address is wrong.
You can use 587 port.