Email deliverability
This page publishes the measured delivery rate of the emails Bastide sends (authentication emails, see Emails) to the main email providers. Figures are published as measured, including when they fall short of the target.
Results of the 2026-10-18 measurement
| Provider | Emails | Delivery rate (inbox) | Accepted (inbox or spam) | Gap to threshold |
|---|---|---|---|---|
| Gmail | 50 | 100 % | 100 % | +1 pts |
| GMX | 50 | 100 % | 100 % | +1 pts |
| Yahoo | 50 | 68 % | 100 % | −31 pts |
| Outlook | 50 | 44 % | 100 % | −55 pts |
| Orange | – | not measured | not measured | – |
| All measured providers | 200 | 78 % | 100 % | −21 pts |
The delivery rate is the share of emails that reached the inbox. The target is 99%. Gap observed: Yahoo, Outlook and the overall rate are below target. No send failed at the relay (200 emails accepted out of 200): the gap comes from the provider filing emails as spam, not from losses.
Method
- Campaign CT-DATA-065 on 2026-10-18, relay Scaleway TEM, 50 emails per test mailbox, spread over time.
- Two kinds of email in turn, with no link or token, sent through the same path as real emails.
- Each email is counted by hand in the mailbox: inbox, spam, or nowhere.
- The overall rate adds up the measured providers, unweighted.
Still to measure
Orange is not measured yet: there is no figure for this provider and it is not part of the overall rate. It will be added to this page once its test mailbox exists.