# Service and quota errors

Source: https://yamm.com/help/usage/troubleshooting/service-and-quota-errors/

Service-level errors that come from Google's infrastructure or from quotas — most resolve on their own or by retrying, but a few have specific fixes.

## Error: 'Server is not responding / server error' {#error-server-is-not-responding-server-error}

![Error server error](https://yamm.com/help/images/docs/usage/troubleshooting/service-and-quota-errors/error-server-is-not-responding-server-error-1.png)

![Server not responding](https://yamm.com/help/images/docs/usage/troubleshooting/service-and-quota-errors/error-server-is-not-responding-server-error-2.png)

These errors come from Google's servers, not YAMM. YAMM relies on Google infrastructure — if Google's servers are momentarily down or overloaded, sending fails.

**Fix:** refresh your spreadsheet and try YAMM again. If the issue persists, uninstall and reinstall YAMM. As stated in our [Terms of service](https://yamm.com/terms-of-service/), YAMM is strongly tied to Google's infrastructure and changes on their side affect what we can deliver.

## Error: 'Service invoked too many times'

![Service invoked too many times](https://yamm.com/help/images/docs/usage/troubleshooting/service-and-quota-errors/error-service-invoked-too-many-times-1.png)

Usually happens when you include [personalized attachments](https://yamm.com/help/usage/create-campaign/personalize-attachments/index.md) and exceed the day's quota.

Due to Google restrictions, the recipient quota drops to 100 per 24 hours when sending attachments from a Gmail account (this limit also applies to Pro plans). See [Run a mail merge with personalized attachments](https://yamm.com/help/usage/create-campaign/personalize-attachments/index.md) for the quota table.

## Error: 'Maximum time exceeded execution'

Your Gmail draft is too big — usually because of large inline images or attachments.

![Maximum time exceeded execution](https://yamm.com/help/images/docs/usage/troubleshooting/service-and-quota-errors/error-maximum-time-exceeded-execution-1.png)

**Recommendations**

- Upload images smaller than **500 KB**. For bigger images, host them elsewhere (Google Photos, Imgur) and insert the image into your draft.
- For attachments larger than 1 MB, upload them to Google Drive and add the file link in the email.

You can check the size of your draft in the **Email Template** dropdown.

**Tip:** create a new draft instead of deleting big images from an existing one. Gmail tends to hide deleted images rather than fully removing them, so the issue persists in the existing draft.

## Error: 'Invalid argument' (alias issue)

![Alias invalid argument1](https://yamm.com/help/images/docs/usage/troubleshooting/service-and-quota-errors/error-invalid-argument-alias-issue-1.png)

The error is linked to the alias in your Gmail draft and/or the alias configuration in Gmail settings.

### Select the right account in your Gmail draft

Open your draft in Gmail and change the **From** field to your default address (not the alias).

![From field of a Gmail draft set to the default address rather than the alias](https://yamm.com/help/images/docs/usage/troubleshooting/service-and-quota-errors/error-invalid-argument-alias-issue-2.png)

Then, if you need to send from the alias, [select it in the add-on](https://yamm.com/help/usage/launch-campaign/set-sender-and-reply-to-addresses/index.md#send-from-an-alias).

![Alias selected in the add-on instead of in the draft](https://yamm.com/help/images/docs/usage/troubleshooting/service-and-quota-errors/error-invalid-argument-alias-issue-3.png)

### Configure your alias correctly in Gmail settings

Go to your Gmail **Accounts** settings and check that the email shown in the error is **Treat as an alias**. If you see **Not an alias**, modify the setting.

![Gmail Accounts settings showing whether the address is treated as an alias](https://yamm.com/help/images/docs/usage/troubleshooting/service-and-quota-errors/error-invalid-argument-alias-issue-4.png)

Click **edit info** > check **Treat as an alias** > validate. See [Use an alias](https://yamm.com/help/usage/launch-campaign/set-sender-and-reply-to-addresses/index.md#send-from-an-alias).

## Error: 'Google Drive refused to connect'

![Google Drive refused to connect error](https://yamm.com/help/images/docs/usage/troubleshooting/service-and-quota-errors/error-google-drive-refused-to-connect-1.png)

Not directly related to YAMM — typically a Google outage or a multi-account issue.

1. Make sure you're not logged in with multiple accounts — see [Log out from multiple accounts](https://yamm.com/help/usage/troubleshooting/quota-issues/index.md#log-out-from-multiple-accounts).
2. Log out from your Google account, log back in, and try sending again.

See [Google's documentation](https://support.google.com/drive/answer/2456903?hl=en) for more.