Hi @zakir yusoff ,
Welcome to our forum.
According to your description, you would like to delete some email addresses in auto-complete list, is it right? If so, I have researched a lot about it but found there seems to be no option that could delete it in it.
Also, I found a similar idea in Outlook for uservoice, which is the Official channel for the Outlook team to collect more good ideas from users and help improve our product. It's suggested to kindly vote it, which may increase the priority for our engineers to create a possible option or feature that can be included in the future updates of the program.
Besides, please kindly understand that here we mainly focus on general issues about Outlook Desktop client, if you still need further assistance about Outlook for Android, it's suggested to post your thread in this direct forum.
The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thanks for your understanding and hope your question will be resolved soon.
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