Unable to send external mails via servicice desk
We need to send PO to Vendors outside our domain(external mails) but efforts in doing so has proved futile. Changing the Vendors email address to any of our local mail addresses work perfectly but whenever we try sending to another domain an error pop up "sending notification failed". However exchange is working perfectly. Thinking it could be the anti-virus we tried running it on a machine without an anti-virus but it still failed. Kindly assist in rectifying this issue.