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"ERROR: "5.7.0 Too Many Unauthenticated commands" when sending test email via Mail Services"
"ERROR: "4.3.2 Service not available" When testing your SMTP connection."
"How to change to oAuth2 Authentication for Connect to Mail"
"ERROR: "AADTS500117: The reply uri specified in the request isn't using a secure scheme" after setting up a mail service configuration for oAuth2"
"Is SMTP impacted by Basic Authentication being deprecated?"
"How can I avoid an automatic redirect when setting up an Exchange Email Login?"
"ERROR: "Authentication unsuccessful, SmtpClientAuthentication is disabled by the tenant.""
"ERROR: "Authentication unsuccessful, the request did not meet the criteria to be authenticated successfully.""
"Emails with attachments exceeding 20MB fail to send due to total size limit reached"
"ERROR: "AADSTS9002325: Proof Key for Code Exchange is required for cross-origin authorization code redemption" when configuring oAuth2"
"Is there a logging agent for emails sent via workflow?"
"Folders not appearing when making a Email account connection with General Mail configuration."
"ERROR: "...verify the security settings of your SMTP server related to the 'Encryption' or the 'Port'..." when setting up Gmail for SMTP"
"How to properly configure settings for Gmail SMTP configuration"
"How to properly configure settings for Yahoo SMTP Configuration"
"The "Connect an Email Account" option is absent from the General Email configuration"
"SMTP via OAuth for Microsoft Office 365 Mailboxes"
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