After setting an update interval (daily, weekly or monthly) for a certain profile, a first search is performed to obtain all current genetic matches for that profile. If this search is successful, a confirmation email is send. The body of this email contains the best 20 matches as well as an attachment that holds all genetic matches for your account (for AncestryDNA, we provide all cousins up to and including fourth cousins).
A typical email containing updates is placed underneath:
"Hello Dennis Payne,
Placed underneath are the individual update(s):
Joe Payne: A 23andme search has been performed and identified a total 1118 DNA matches. Of the 2 new DNA matches, one match is a DNA match that is predicted as 4th Cousin or closer and is listed underneath.
M. Haywire shares 4 DNA segments (0.48%, approximately 34.6 cM ) and is a predicted 3rd Cousin
Dennis Payne: An Ancestry search has been performed for Dennis Payne. Of the 46 new DNA matches, one match is a DNA match that is predicted as fourth cousin or closer and is listed underneath.
Keith Smith shares in total: 39.1 cM and is a predicted fourth cousin with a confidence value of 92.4%. Last, Ancestry has identified 32 other DNA matches in common (one of these common matches is actually one of your profiles: Mom of Dennis Payne)."