If you are getting the error (also in screenshot) "551 Sender address is not valid for your login" when you try to send emails from your email client then you need to check the login details entred by you in your email client.
To fix the above issue you need to check the login details entered by you in your
corresponding email client.
Please check the following if your are getting the below error when sending email from Outlook...
If the sender is getting the below error when he is sending you the email then you need to...
If the client is getting the below error when he/she is sending email to mail account in your...
When sending an email out if you get an error like An error occured sending mail: The mail...
The issue you are facing is due to the password inserted for the email address in the email...
