Outlook 365 and Outlook ios - delete suggested autocomplete recipeient

RAdams52 

Some further info

Upon re-researching this nagging issue, I now remember this began as a suspicious "shared" One Drive document that was caught by Outlook.  But, as best as I can recollect, this has been going on longer than since May.  So, if I am remembering correctly, this is not the first "communication" from this sender that was caught up in my email.

To be clear,

I do not know this person/email address

I am not in business or belong to an organization from which I would be linked with this person/email address

Attached are some .pdfs which I have sterilized for my privacy.  They show:

• A document that was caught by outlook showing my email address, the malicious email address, and the common shared phrase
• My effort to delete or block the sender to which I was told I could not
• Some way, it seems, the sender is already being handled as a "contact"
• Outlook, more recently, with a new similar "shared" document

I'm sure a quick suggestion to this problem may be to uninstall and reinstall Outlook.  But, how will that solve the issue I am having with Outlook for ios?  Will uninstalling and reinstalling be required every time I get a similar bogus shared document from a similar sender?

Again, any help is appreciated as is your patience with my lengthy documentation