Send/ receieve not working in outlook classic

Hi @Dheeraj Kochhar 

Please note that this is a user-to-user support forum. Moderators, contributors including external Microsoft employees cannot directly intervene in Microsoft product features or access back-end systems. Our role is limited to providing technical guidance on reported issues, requests, or ideas. 

To better understand your situation, may I clarify the following? 

1. Are you currently able to access your mailbox through webmail? If so, can you send and receive emails successfully there? 
2. When did this situation start? Did it occur recently, or did it happen immediately after adding the account to Classic Outlook? 
3. What is the email account type you are using, IMAP or POP? 

In the meantime, you may try adding the account manually to Classic Outlook by following the steps in the reference below.

Reference: Add an email account to Outlook for Windows - Microsoft Support 

For the incoming and outgoing server settings, I recommend referring to the official documentation from your email provider to ensure the most accurate configuration information. 

If I’ve misunderstood any part of your situation, or if you have further questions or updates, please don’t hesitate to reply. 

Thank you for your time, and I look forward to hearing from you soon. 

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