Also when I connect gmail account to Outlook for smartphone the attachment is visible. The antivirus was checked, the email filters was checked, safe senders list in Outlook was checked, ISP sode was checked, email provider for private domain was checked and everything is fine at that side. On the smartphone side native samsung email client with private domain email account the attachment is also visible. On the gmail side the attachment is visible and also on the webmail side of private email account is visible. Hi! Did anybody had issues with attachments when you connect private domain email account or gmail to Outlook client? We have a problem where Outlook somehow deletes attachments and delivers email but only in cases where private domain email account is connected to Outlook client or gmail (I've tested it with gmail, probably with yahoo or aol is the same).