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Question

Issue UTF in Subjectline

  • June 12, 2025
  • 14 replies
  • 151 views

Hello guys,

 

i have an issue with the subject line. We send out a new mail with a subject. 

But the subject includes utf8 and it shows uncoded subject now. 

How it looks in outlook:

how it looks in gmail:

 

How can we solve this? 

What i tryed - typed in all new in subject line and hoped the utf will be removed. 

 

 

This topic has been closed for replies.

14 replies

David
Community Manager
  • Community Manager
  • June 12, 2025

Hi ​@Alexander50051 - Thanks for reaching out on this.

Could you try creating a brand new Workflow for this reminder, and test it? I’d like to see if the issue carries over to multiple different places like the Event Reminders & Workflows.


Let me know - Thank you!


  • Author
  • Community Member
  • June 12, 2025

Hi,

i have 2 workflows with the same issue :) 

both created with different timestamps but i can do it again and test it. give me a few seconds


  • Author
  • Community Member
  • June 12, 2025

workflow newly created - same issue - maybe it is an issue with äöü - i will check it fast 


  • Author
  • Community Member
  • June 12, 2025

double checked it now - new workflow without and with special char. same issue. utf8 formation in subjectline is the issue. 

 

Looks like that outlook / MS365 can not translate utf8 in subject line. How can i disable this in calendly? 

 

“To ensure correct display of UTF-8 characters in Outlook subject lines, you can configure your email client to prioritize UTF-8 encoding or create rules to filter messages based on subject line content. While you cannot force incoming messages to use a specific encoding, you can adjust Outlook's settings to handle UTF-8 correctly”


David
Community Manager
  • Community Manager
  • June 12, 2025

Understood, thanks for checking all of this!

Could you send me a screenshot of whats configured in Calendly for both the working and non-working workflow? I don’t believe there is a way to disable this in Calendly, so I can report this for you on your behalf.

Once you send it over, I can take care of it from there.


  • Author
  • Community Member
  • June 12, 2025

Hi, sure i can. 

but i checked some more. 
The initial Appointment mail - fine
The follow up mail - broken
cancle appointment - fine

does it matter which eventtype - nope - all are affected new and old.

created a new workflow - mail to host without variables- works

changed to mail to invitee without var- works

added  1 var - utf issue appears :)  

i changed it back to mail to host - and added a var - no issue. 

 

so it looks like its based on send mail to invitee + using at least 1 var.

 

there is no special config. Just the function and selfwritten text - not ccopied + 3-4 var. 

 

You need still the configuration for it? 


David
Community Manager
  • Community Manager
  • June 12, 2025

Got it - Thanks for all the additional info! Yes, if you could still send over some screenshots of the workflows themselves, I can send it to my product team for them to look over it.

Appreciate it! 🙂


  • Author
  • Community Member
  • June 12, 2025

​​​​​
Hope this should work :) 
 

 

 


David
Community Manager
  • Community Manager
  • June 12, 2025

Thank you so much, I’ll get this over to our team so they can investigate - Just to confirm, the Workflow you shared in the screenshot is the one that shows up incorrectly in Outlook, right?

 


  • Author
  • Community Member
  • June 12, 2025

Yes, all workflows have the same issue with mail to invitee. It makes no difference with the content. Only if you use a var its broken when use the fuction send mail to intivee. 

all workflows with send mail to invitee are broken. 


  • Author
  • Community Member
  • June 19, 2025

Do you have any update? Because we use calendy in sales this issue has a massiv impact - we consider to cancle the subscription and move to another system.  Is there no way to get help directly from calendy? 


David
Community Manager
  • Community Manager
  • June 19, 2025

Hi ​@Alexander50051 - Thanks for reaching back out.

I don’t have an update at this time as our team is still investigating this. As soon as I hear anything I’ll let you know.

In a pinch, you can also chat in with our support team anytime you need assistance. There should be a blue chat bubble when you log into your account that you can use. You can read here to learn more: https://help.calendly.com/hc/en-us/requests/new

Let me know if you have any other questions in the meantime.


David
Community Manager
  • Community Manager
  • June 19, 2025

Something else we can test in the meantime, however - Could you change the Send From email from your Outlook to the default notifications@calendly email? I’d like to see if the behavior carries over.

Let me know!
 

 


David
Community Manager
  • Community Manager
  • June 23, 2025

Hi ​@Alexander50051 - Thanks for all of your patience with this - Our team is still looking into potential causes with this issue.

In the meantime, can you send the information you linked in this post over to support@calendly.com? They’ll dig into your specific account from here!

Let me know if you have any questions