With reference to spamming what is the full form of UCE ?
With reference to spamming Undesired Commercial Email is the full form of UCE
Spamming is considered a direct violation of Acceptable Use Policies by most, if not all, ISPs. ... Technically speaking, spam refers to any bulk sending of messages on an electronic system, but most consider the term "spam" synonymous with "email spam." UCE is basically the same as UBE (Unsolicited Bulk Email).
The statistics shows the share of global spam volume as percentage of total e-mail traffic as of March 2018, sorted by month. As of the most recently reported period, spam messages accounted for 48.16 percent of e-mail traffic worldwide.
It depends on who sent the mail. With email spam, the longtime rule has been not to click the unsubscribe button because that can merely tell unscrupulous spammers that your email account is live, and typically results in getting more.
UBE (unsolicited bulk email) is a formal term for spam. The most common type of UBE is unsolicited commercial email (UCE): bulk email that is trying to get the recipient to buy some product or service.