The fake "gvumful" USPS text message below, which is being sent from (626)734-9643 and (818)485-1442 with a link to gvumful.com is a scam being sent by online scammers. Therefore, recipients are asked not to click the link in the fake text message, they should just delete it. The link goes to the fake and phishing USPS website, gvumful.com, which steals account credentials, personal, and financial information.
The gvumful USPS Scam Text Message

From: +1 (626) 734-9643
Due to missing complete address information your package could not be delivered, please update the information in time. https://gvumful.com
If you have received the "gvumful" USPS text scam with a link to qnvoamu.com, please share it in a comment. Include the telephone number the text came from. This will help inform others, which will prevent them from becoming victims.