Unwanted auto suggestions for email recipient

I have a bit of a problem with the auto suggestions for email recipients. Today I have cleared out a lot of previous recipients and contacts that are now obsolete for my future purposes but they still come up as suggested recipients of a new email. For example if I start to type “ruth” into the “To” box then when I get to “ru” the desired address comes up but so do four others which I thought I had deleted. This is not a major problem until I accidentally click on one of the alternatives, which I did a few days ago … what am I doing wrong, how can I cut out these addresses that I no longer want? Thanks.

See the following thread link

Thanks, that seems to have worked.