# sendEmail "content type"

**URL:** <https://forum.inductiveautomation.com/t/sendemail-content-type/60196>\
**Category:** Ignition\
**Created:** [May 31, 2022, 8:49am UTC](https://forum.inductiveautomation.com/t/sendemail-content-type/60196 "2022-05-31T08:49:46Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![pascal.fragnoud](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pascal.fragnoud/32/24728_2.png) [@pascal.fragnoud](https://forum.inductiveautomation.com/u/pascal.fragnoud)\
**Post date:** [May 31, 2022, 8:49am UTC](https://forum.inductiveautomation.com/t/sendemail-content-type/60196/1 "2022-05-31T08:49:46Z")

</div>

Hello folks,

I'm sending emails, it works, but I do get a warning in the logs:

> com.inductiveautomation.ignition.common.script.JythonExecException: java.lang.IllegalArgumentException: java.lang.IllegalArgumentException: Incomplete email parameters. You must specify the SMTP host, from, recipient, and content type.

Here's the part responsible for sending the mails, I only modified the `fromAddr` and `subject` parameters:

```python
if customer_message is not None:
	system.net.sendEmail(
		smtp = "localhost:25",
		fromAddr = "no-reply@ourcompany.com",
		subject = "mail_subject",
		to = customer_addresses,
		body = customer_message
	)

```

Comparing the error and those parameters, the only one that is not there is `content type`. But I can't see any `content type` parameter in the docs ([system.net.sendEmail - Ignition User Manual 8.1 - Ignition Documentation](https://docs.inductiveautomation.com/display/DOC81/system.net.sendEmail)):

> **[system.net](http://system.net)[.](http://system.net/)sendEmail(smtp, fromAddr, [subject] , [body] , [html] , to, [attachmentNames l] , [attachmentData l] , [timeout] , [username] , [password] , [priority] , [smtpProfile], [cc] , [bcc] , [retries], [replyTo] )**

Or is it the `html` boolean ? Here's what the docs have to say about it:

> Boolean html - A flag indicating whether or not to send the email as an HTML email. Will auto-detect if omitted. [optional]

My mail bodies are html indeed, but it appears this flag should be optional.  
The emails are sent and received. BUT, the script in charge of sending those emails does exit when the exception is raised, after sending the email. I don't want to try/catch this, I want to fix it, but it's... kind of weird.

Now, even weirder: I have a test mode that I use to... well, test things.  
The function in charge of sending the emails has a signature that looks like this:

```python
def send_emails(site, customer=None, test=False)

```

And I compute the addresses depending on the test mode:

```python
customer_addresses = get_addresses(customer, rosters[customer]) if not test and customer is not None else get_addresses('Test', rosters['Test'])

```

That's the only part that depends on the `test` parameter. The mail body is the same, the `system.net.sendEmail` call is the same, etc.  
BUT, I don't get any warning in the logs when I pass `test=True` to the function.

What the hell is going on ?

edit:  
Actually, the mail might not be sent properly. I have 2 calls to `system.net.sendEmail` (that are very similar), it might be the second one that raises the exception, so the first one does send the email and the second one errors out. But `test=True` does send BOTH mails without any warning.

Here's what the first one looks like:

```python
if ourcompany_message is not None:
	system.net.sendEmail(
		smtp = "localhost:25",
		fromAddr = "no-reply@mail.com",
		subject = "mail_subject",
		to = ourcompany_addresses,
		body = ourcompany_message
	)

```

As you can see, the call is basically identical, the difference is in the message body: The first one has some more rows in a table, the rest of it is exactly the same.

---

<div class="post-metadata">

**Author:** ![pascal.fragnoud](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pascal.fragnoud/32/24728_2.png) [@pascal.fragnoud](https://forum.inductiveautomation.com/u/pascal.fragnoud)\
**Post date:** [May 31, 2022, 9:17am UTC](https://forum.inductiveautomation.com/t/sendemail-content-type/60196/2 "2022-05-31T09:17:17Z")

</div>

Okay folks forget about this, here’s what’s up:  
There are no contact info configured for the customer’s roster. No addresses = no emails.

The most obvious issue is sometimes the last one you think of.