send email from Wordpress exchange on prem account

[Pete_OJ]

hello 

im trying from the wordpress website to send an email with my onprem exchange account.

everytime i tries i get Could not authenticate im sure about the login and pass the smtp i put either the ip of the server or mail.server.com encryption set to none and smtp authentication  yes if i said no i can receive the mail  im using the port 25 

no matter what i try i can't receive the mail

thanks 

[#2]

Hi @Pete_OJ 

check this link you will find brief explanation of how to use authentication with smtp.

Configure authenticated SMTP settings for POP3 and IMAP4 clients in Exchange Server | Microsoft Lear...

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