use the highest epoch of emails found for unix timestamp
use the highest epoch of emails found for unix timestamp

this way, emails that are a bit behind won't go missing.

quenda/ponymail,rbowen/ponymail,rbowen/ponymail,jimjag/ponymail,Humbedooh/ponymail,quenda/ponymail,Humbedooh/ponymail,jimjag/ponymail,rbowen/ponymail,quenda/ponymail,Humbedooh/ponymail,jimjag/ponymail,jimjag/ponymail