Me and my clients are having problems sending email to say, gmail and yahoo.
Also a few other email address:
Tried to send a test email to my gmail account (firstname.lastname@example.org ). Got the following error message:
Message sending failed since the following recipients were rejected by the server:
(The server responded: "<email@example.com>: Recipient address rejected: Relay access denied")
The message will stay in the 'outbox' folder until you either fix the problem (e.g. a broken address) or remove the message from the 'outbox' folder.
The following transport protocol was used:
Your help is appreciated.