Email Error - Help - Domain of sender address [email address here] does not accept inbound mail

Hi,

 

Running NIS 18.5.0.125

 

tried sending an email using outlook and the following error popped up from Norton.  Not sure what happened.  Sent and received multiple emails to test afterward and all worked fine.  Can someone tell me what this error means please?  just curious as it marked it as a High Severity.

 

Category: Email Errors
Date & Time,Risk,Activity,Status,Recommended Action
1/10/2011 6:15 PM,High,451 4.1.8 - Domain of sender address [email address here] does not accept inbound mail [R0307001]  ,Error,No Action Required

 

Thanks,

Rich

 

 

No spelling mistake as it comes up from the address book and I always email to that account.  Odd.

Hi,

 

Running NIS 18.5.0.125

 

tried sending an email using outlook and the following error popped up from Norton.  Not sure what happened.  Sent and received multiple emails to test afterward and all worked fine.  Can someone tell me what this error means please?  just curious as it marked it as a High Severity.

 

Category: Email Errors
Date & Time,Risk,Activity,Status,Recommended Action
1/10/2011 6:15 PM,High,451 4.1.8 - Domain of sender address [email address here] does not accept inbound mail [R0307001]  ,Error,No Action Required

 

Thanks,

Rich