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0x80040607 outlook 550 5.7.1 unable to relay for

using outlook in smtp mode i am unable to sendmail

error 0x80040607

i am able to ping the smtp server just fine.

any ideas ?

we put in a new firewall do you think something might be blocked ?
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8/22/2022 - Mon

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not using exchange but using a webserver as smtp...

where would I make the change?
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