Message not sent. Server replied:
554 5.7.1 <webmail.rollernet.us[2607:fe70:0:14::a]>: Client host rejected: sender domain name must match SMTP login name on this account type
Is this because of security reasons? Well known email providers like Gmail, Fastmail, Tuffmail, etc. seems to have no trouble with this feature. Is this perhaps something for Rollernet to add?