As above, apparently since the update to Drupal 7.50 our store has not been sending email. Orders are processed (payments also) but stop at Pending.
Other messages from the site (STMP Authentication tests, password resets, etc.) are coming through fine.
There are a number of errors generated at each order (apparently I can't post them here though).
Any help or advice would be appreciated (and any offers of paid assistance considered).