# Yahoo Email Deliverability Performance Feeds

> Yahoo's server-side data feeds for senders: the Placement Feed (inbox/spam/folder/error/complaints) and Campaign Performance Feed (engagement metrics), with schemas and SLAs.

Source: emailmarketing.net — https://emailmarketing.net/learn/providers/yahoo-performance-feeds

If you want to know whether your mail reaches the inbox or the spam folder at Yahoo, without relying on seed lists, Yahoo's performance feeds give you that answer. They are the only direct way to see ground-truth placement data at this major mailbox provider.

The feeds report email placement and engagement **taken directly from the Yahoo mail servers**, rather than from tracking pixels or from seed or panel data. Yahoo presents this as more respectful of privacy than pixel tracking, and more representative than panel sources with small samples, given that Yahoo has hundreds of millions of active users.

## The two feeds

### Placement Feed

The Placement Feed tracks where messages land (inbox, spam, folders), as well as errors and complaints. The data is filtered by an **allowlist of sender domains or sender IP addresses that the feed's user supplies**.

| Dimensions | Metrics |
|---|---|
| `dkim_domain`, `sender_domain`, `ip_address`, `xheader`, `xheader_value` | `inbox_delivers`, `spam_delivers`, `folder_delivers`, `error_delivers`, `complaints` |

The `xheader` and `xheader_value` dimensions let a sender break results down by a custom X-header (for example, a campaign ID added to outgoing mail).

### Campaign Performance Feed

The Campaign Performance Feed measures engagement after delivery, broken down by sender domain and campaign. It is filtered by a **sender allowlist of sender domains**.

| Dimensions | Metrics |
|---|---|
| `declared_template_namespace`, `declared_template_id`, `declared_template_goal`, `delivery_type`, `client`, `sender_domain`, `sender_email`, `engagement_date`, `user_local_hour`, `is_scrubbed` | `delivered`, `opened`, `link_clicked`, `deleted`, `marked_read`, `forwarded`, `starred`, `archived`, `moved`, `push_notif_opened`, `replied`, `marked_spam`, `dwell_time_read`, `dwell_time_glance`, `dwell_time_skim` |

The engagement signals go deep. They include deletions, replies, spam votes, opens of push notifications, and categories of dwell time (read, glance and skim). These are the same kinds of signals that mailbox providers use internally for reputation (see [Foundations of Email Deliverability](https://emailmarketing.net/learn/foundations/foundations-of-email-deliverability)).

## Feed specifications

| Spec | Placement Feed | Campaign Performance Feed |
|---|---|---|
| Reporting granularity | Hourly | Hourly |
| Delivery granularity | Hourly | Daily |
| SLA (data latency) | 12 hours | 48 hours |
| Retention | 30 days | 30 days |
| File format | Avro | Avro |
| Timezone | UTC | UTC |
| Filtering | Allowlist of sender domains or sender IPs | Allowlist of sender domains |

## Access

Yahoo publishes no pricing, no formal eligibility criteria and no way to enroll yourself. Contact **mail-questions@yahooinc.com** to learn about the program and its access requirements.

## How it fits a deliverability workflow

- **Placement monitoring**: replace or check seed-list testing at Yahoo with actual counts of inbox and spam placement for each domain and IP address. Watch `error_delivers` alongside your SMTP logs (see [Yahoo SMTP Error Codes](https://emailmarketing.net/learn/providers/yahoo-smtp-error-codes)).
- **Complaint-rate tracking**: `complaints` divided by `inbox_delivers` approximates the rate that Yahoo checks against its **0.3% threshold** ([Yahoo Sender Requirements](https://emailmarketing.net/learn/providers/yahoo-sender-requirements)). Combine it with the suppression of individual recipients through the [Complaint Feedback Loop](https://emailmarketing.net/learn/providers/yahoo-complaint-feedback-loop).
- **Engagement optimization**: dwell time and action metrics (deletions compared with reads, `user_local_hour`) help decide on content, segmentation and send times for each campaign or template.
- **Stream comparison**: the `dkim_domain` and `ip_address` dimensions show how separate mail streams perform compared with each other (see [Advanced IP Segmentation](https://emailmarketing.net/learn/ip-management/advanced-ip-segmentation)).

## Related articles

- [Yahoo Sender Requirements](https://emailmarketing.net/learn/providers/yahoo-sender-requirements)
- [Yahoo Complaint Feedback Loop](https://emailmarketing.net/learn/providers/yahoo-complaint-feedback-loop)
- [Yahoo SMTP Error Codes](https://emailmarketing.net/learn/providers/yahoo-smtp-error-codes)