How to Setup POSTFIX as SMARTHOST or SMTP GATEWAY before Microsoft Exchange Server
How to Setup POSTFIX as SMARTHOST or SMTP GATEWAY before Microsoft Exchange Server
Troubleshooting IMAP Connectivity: Unable to authenticate to IMAP server. IMAP command failed: Login failed.
The first step is to check if the Courier IMAP server is accepting connections. Open a terminal window and type: telnet hostname 143 Replace hostname with the IMAP server's DNS name. This expected results would look like this: $ telnet imap.example.com 143 If you get the error "no login failed" then you need to check the following; 1. Make sure IMAP Service is running. 2. You should make sure that you are using the correct password and that the mail username is in the format: 3. Make sure there is correct name in your exchange server certificate. Please check your certificate settings: Get-ExchangeCertificate | fl I noticed that the InternalConnectionSettings is pointed to Test2.contoso.com but the X509CertificateName is using Remote.domain.com. If there is a certificate with Test2.contoso.com, please change the X509CertificateName to it to have a try: Set-IMAPSettings -Identity Test2\1 -X509CertificateName Test2.contoso.com T...
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