the input is not a valid base64 string as it contains a non-base 64 character more than two padding characters, or an illegal character

Get the below error message when trying to send and receive e-mails… the input is not a valid base64 string as it contains a non-base 64 character more than two padding characters, or an illegal character among the padding characters

Hi,

Please try deleting and re-adding your account, make sure you SMTP settings are correct.

Hope this helps.

Regards,
Dave