# Email getting rejected with 550 Messages should have one or no Content-Type headers, not 2
**URL:** https://discourse.nodered.org/t/email-getting-rejected-with-550-messages-should-have-one-or-no-content-type-headers-not-2/44067
**Category:** General
**Created:** [12 April 2021 21:33 UTC](https://discourse.nodered.org/t/email-getting-rejected-with-550-messages-should-have-one-or-no-content-type-headers-not-2/44067 "2021-04-12T21:33:37Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@chrisn-au](https://discourse.nodered.org/u/chrisn-au)
#### Post date: [12 April 2021 21:33 UTC](https://discourse.nodered.org/t/email-getting-rejected-with-550-messages-should-have-one-or-no-content-type-headers-not-2/44067/1 "2021-04-12T21:33:38Z")
Hi,
Over the last week or so I have been getting an error for some emails sent with the email node to an outlook server. I am getting a bounce on the email with
The response from the remote server was:
550 Messages should have one or no Content-Type headers, not 2.
It is quite strange as it seems to work if I trigger the email manually and it worked for over year.
I set up the email by
```auto
let batch_id = msg.batch
let payload = msg.payload //was msh.payload thanks Steve
msg.to = "redacted@redacted.com.au"
msg.bcc = "chrisn@work.com.au,"
msg.topic = "Order Data for Batch ID "+msg.batch
msg.attachments = [{ filename: batch+".csv",
content: payload
}];
msg.payload = "Attached is the order Data for batch id "+batch
return msg;
```
Before I go an spend to much tiime on this has anyone seen anything like this ?
---
### Author:  [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)
#### Post date: [12 April 2021 21:55 UTC](https://discourse.nodered.org/t/email-getting-rejected-with-550-messages-should-have-one-or-no-content-type-headers-not-2/44067/2 "2021-04-12T21:55:23Z")
> [@chrisn-au](#):
>
> `msh.payload`
Maybe due to the typo?
---
### Author:  [@chrisn-au](https://discourse.nodered.org/u/chrisn-au)
#### Post date: [12 April 2021 22:01 UTC](https://discourse.nodered.org/t/email-getting-rejected-with-550-messages-should-have-one-or-no-content-type-headers-not-2/44067/3 "2021-04-12T22:01:50Z")
unfortunately not, that typo was me sanitising before posting I will tidy up the typo
---
### Author:  [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)
#### Post date: [12 April 2021 22:49 UTC](https://discourse.nodered.org/t/email-getting-rejected-with-550-messages-should-have-one-or-no-content-type-headers-not-2/44067/4 "2021-04-12T22:49:12Z")
What happens if you put quotes around the email addresses and/or remove the comma?
```auto
msg.to = `"redacted@redacted.com.au"`
msg.bcc = `"chrisn@work.com.au"`
```
---
### Author:  [@chrisn-au](https://discourse.nodered.org/u/chrisn-au)
#### Post date: [12 April 2021 23:19 UTC](https://discourse.nodered.org/t/email-getting-rejected-with-550-messages-should-have-one-or-no-content-type-headers-not-2/44067/5 "2021-04-12T23:19:25Z")
Steve,
Umm, I may have found the issue, (and not sure why it has started to occur now). The upstream flow makes a HTTP call, so msg.headers is set. In my resend flow msg.headers is not set .
I assume that the email node may be using the msg.headers field. I have justed nuked msg and only explicitly set what I need. will find out tomorrow at 7 am but it makes sense
```auto
let batch_id = msg.batch
let payload = msg.payload //was msh.payload thanks Steve
msg.payload = {}
msg.to = "redacted@redacted.com.au"
msg.bcc = "chrisn@work.com.au,"
msg.topic = "Order Data for Batch ID "+msg.batch
msg.attachments = [{ filename: batch+".csv",
content: payload
}];
msg.payload = "Attached is the order Data for batch id "+batch
``
```
---
### Author:  [@chrisn-au](https://discourse.nodered.org/u/chrisn-au)
#### Post date: [12 April 2021 23:27 UTC](https://discourse.nodered.org/t/email-getting-rejected-with-550-messages-should-have-one-or-no-content-type-headers-not-2/44067/6 "2021-04-12T23:27:38Z")
So yep the email node does use msg.headers
```auto
if (node.name === "") {
sendopts.cc = msg.cc;
sendopts.bcc = msg.bcc;
sendopts.inReplyTo = msg.inReplyTo;
sendopts.replyTo = msg.replyTo;
sendopts.references = msg.references;
sendopts.headers = msg.headers;
sendopts.priority = msg.priority;
}
```
So I guess that the receiving sides email server has been upgraded and it justifiably rejects a header like
```auto
msg.headers =
{
"API-TOKEN": msg.accessToken,
"Content-Type": "application/json"
}
```
Thanks for the help
---
### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [26 April 2021 23:27 UTC](https://discourse.nodered.org/t/email-getting-rejected-with-550-messages-should-have-one-or-no-content-type-headers-not-2/44067/7 "2021-04-26T23:27:41Z")
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