Sendwithus connectivity issues
Resolved
This incident has been resolved.
Sep 7, 7:39 PMResolved Sep 7, 7:59 PMMajorAPIWeb Interface
Status Provider
Home
/
Status
/
Service
Operational
Send With Us Status
Transactional email management and optimization platform.
Source
auto
Category
Communication
Adapter
STATUSPAGE IO
Verified
Pending review
Current state
Operational
Checked 18m ago
13
Components
0
Active incidents
0
Maintenance
0%
90d uptime
Sendwithus connectivity issues
Sep 7, 7:39 PM
Service health overview
Operational snapshot
Normalized official status-page data for incidents, maintenance, components, and history.
0%
Known uptime
1 known history days
13
Components tracked
0 outage, 0 degraded
50
Incidents indexed
0 active right now
50
Maintenance windows
0 active or scheduled
Top affected components
Components with the most recent status-page events.
Email Service Providers
Operational
3
SendGrid API v2
Operational
3
SendGrid API v3
Operational
3
API
Operational
1
Analytics Data
Operational
1
90-day status history
Daily rollup
Component changes, incidents, and maintenance windows grouped by day.
operational
degraded
outage
maintenance
unknown
0
operational days
1
degraded days
0
outage days
0
maintenance days
89
unknown days
Recent incidents
Official incidents
Latest outages and degradations detected from the official status page.
Image upload failures
Resolved
This incident has been resolved.
Aug 30, 2:09 AMResolved Aug 30, 2:31 AMMinorWeb Interface
Elevated error rates
Resolved
This incident has been resolved.
Aug 2, 5:29 PMResolved Aug 2, 5:55 PMMajorAPIWeb Interface
Inline Attachment Issue
Postmortem
# Summary Between 18:33 July 13th and 11:20 July 14th 2023 \(PDT\), inline attachments from a small number of emails were incorrectly attached to an unknown number of emails sent by other accounts. # Impact & Metrics | **Question** | **Answer** | | --- | --- | | What was the impact | Incorrect inline attachments were incorrectly attached to a maximum of 17% of overall emails sent by Sendwithus | | Who was impacted | A subset of Sendwithus users sending emails between July 13th 6:33 pm PDT and July 14th 11:20 am PDT may have been impacted | # Detection & Response | **Question** | **Answer** | | --- | --- | | When was the incident detected | July 14th 2023, 10:21 am PDT | | How was the incident detected | An impacted user reached out to the Sendwithus Customer Support team and the incident was quickly escalated | # Timeline _Times are in Pacific Time_ **Jul 13, 2023** **09:44** A new feature related to sending inline attachments was released **18:33** The first detection of a send using the feature since the change **Jul 14, 2023** **10:21** A user reported some of their recipients were receiving unexpected inline attachments on their emails **10:45** Customer Support notifies on-call engineers and the incident is escalated **11:00** Status page updated **11:10** Resolved the issue by reverting to the previous version of Sendwithus **12:40** Underlying issue identified **13:00** Engineering team began an investigation to determine total user impact **17:00** First emails to personally reach out to impacted users sent # Root Cause Analysis **Problem:** A user has reported that some of their emails contain an unexpected attachment. Why? **Reason:** Recent changes were made to our systems to support sending an arbitrary number of inline attachments. This change introduced a bug which resulted in a variable being reused for subsequent emails sent by the same process. Why? **Reason:** An optional parameter in a function definition had a default reference-type value. The issue was not identified before deploying to production. Why? **Reason:** Our current testing, linting, and code review processes were not sufficient to identify the problem. # What can be improved * Changes are being made to our testing and linting processes to catch this category of bug in our CI pipeline * The transient nature of inline attachments and a lack of thread/process level identification in our archived transaction logs has made it difficult to identify exactly which customers and emails were affected. Due to this only the maximum number of _potential_ impacted emails can be identified * Increased controls to improve cross-tenant isolation of information # Corrective actions * The problematic change was quickly identified and reverted after we became aware of the issue * Changes have since been made to the codebase to reduce the probability of similar issues manifesting elsewhere
Jul 14, 6:00 PMResolved Jul 14, 6:00 PMMajor
Email Logs Page Availability Issues
Resolved
This incident has been resolved.
May 23, 2:45 PMResolved May 23, 5:33 PMNoneWeb Interface
API availibility issues
Resolved
This incident has been resolved.
May 4, 9:45 PMResolved May 4, 11:17 PMMajorAPIWeb Interface
Elevated API Error rates
Resolved
This incident has been resolved.
Apr 27, 5:53 PMResolved Apr 27, 6:40 PMMinorAPI
Incorrect Customer Data
Resolved
The root problem has been resolved. Sendwithus support will be reaching out to impacted customers.
Mar 15, 10:52 PMResolved Mar 16, 4:36 AMMinorWeb Interface
Mailgun Webhook issues
Resolved
This incident has been resolved.
Mar 15, 10:48 PMResolved Mar 16, 4:31 AMMajorAnalytics Data
Some emails failing to render and send correctly
Resolved
The underlying problem has been resolved and all failed emails have been resent.
Nov 7, 8:33 PMResolved Nov 7, 9:40 PMMajorEmail Delivery
Recent maintenance
Maintenance windows
Scheduled and completed maintenance windows are separated from incidents.
Infrastructure Maintenance
Completed
The scheduled maintenance has been completed.
Mar 11, 2:00 AMResolved Mar 11, 6:00 AMMaintenanceAnalytics DataAPI
Infrastructure Maintenance
Completed
The scheduled maintenance has been completed.
Feb 25, 3:00 AMResolved Feb 25, 7:00 AMMaintenanceAnalytics DataAPI
Infrastructure Maintenance
Completed
The scheduled maintenance has been completed.
Feb 18, 3:00 AMResolved Feb 18, 7:00 AMMaintenanceAnalytics DataAPI
Infrastructure Maintenance
Completed
The scheduled maintenance has been completed.
Oct 1, 2:00 AMResolved Oct 1, 6:00 AMMaintenanceAPIWeb Interface
Infrastructure Maintenance
Completed
The scheduled maintenance has been completed.
Aug 20, 2:00 AMResolved Aug 20, 2:13 AMMaintenanceAPIWeb Interface
Infrastructure Maintenance
Completed
The scheduled maintenance has been completed.
Jul 3, 2:00 AMResolved Jul 3, 6:00 AMMaintenanceAPIWeb Interface
Infrastructure Maintenance
Completed
The scheduled maintenance has been completed.
Apr 17, 2:00 AMResolved Apr 17, 6:00 AMMaintenanceAPIWeb Interface
Infrastructure Maintenance
Completed
The scheduled maintenance has been completed.
Jul 13, 2:00 AMResolved Jul 13, 3:31 AMMaintenanceWeb Interface
Infrastructure Maintenance
Completed
The scheduled maintenance has been completed.
Jun 28, 2:00 AMResolved Jun 28, 6:00 AMMaintenanceWeb Interface
Infrastructure upgrades
Completed
The scheduled maintenance has been completed.
Jun 21, 2:00 AMResolved Jun 21, 2:48 AMMaintenanceWeb Interface
About the Send With Us status page integration
Uptimus tracks the official Send With Us status page, normalizes upstream events, and separates incidents from scheduled maintenance.
Official source
https://status.sendwithus.com
Adapter
STATUSPAGE IO
Alert streams
Incidents, component changes, and maintenance windows.
Public SEO page
Indexable status history for users searching outage information.
Outage map preview
Regional reports can be layered on top of official provider status when user signals are available.
Send With Us components
Tracked components
Showing 1 to 13 of 13 tracked components.
| Component | Status | Type | Last changed |
|---|---|---|---|
Email Service Providers | Operational | Group | 6/14/2026 |
Mailgun API | Operational | Component | Not recorded |
Web Interface | Operational | Component | Not recorded |
API | Operational | Component | Not recorded |
Mailgun Delivery | Operational | Component | Not recorded |
Email Delivery | Operational | Component | Not recorded |
Mailjet API | Operational | Component | Not recorded |
Analytics Data | Operational | Component | Not recorded |
Mailjet Outgoing SMTP | Operational | Component | Not recorded |
Campaigns & Connect Newsletters powered by Sendwithus marketing Campaigns and Connect. | Operational | Component | Not recorded |
SendGrid API v2 | Operational | Component | 6/14/2026 |
SendGrid API v3 | Operational | Component | 6/14/2026 |
SendGrid Event Webhook | Operational | Component | Not recorded |
Get notified when Send With Us changes status
Follow outages, degraded components, and maintenance updates in your Uptimus workspace with email, push, and webhook alerts.
Show Send With Us on your own status page
Official provider components
Incident and maintenance separation
Workspace alerts and webhooks
Users also follow these services
Related status pages based on category, adapter type, and operational history.
Frequently asked questions
Is Send With Us down right now?
Send With Us is currently marked as Operational in Uptimus based on the latest official status page check.
How often does Uptimus check Send With Us?
Supported status page providers are checked continuously by our scraper scheduler. The public page is cached briefly for SEO and performance.
Are maintenance windows counted as incidents?
No. Uptimus stores incidents and maintenance windows separately when the upstream provider exposes enough detail.
Can I get alerts for Send With Us?
Yes. Create an Uptimus workspace, follow this provider, and choose email, push, or webhook notifications.