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Alteryx Designer Knowledge Base

Definitive answers from Designer experts.

Exclamation mark (!) being added to reporting objects when rendered by Email Tool


Environment Details

Emails sent from Designer using the Email Tool contain exclamations points ! at random places in the email body.
  • Alteryx Designer
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  • Email Tool

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Some SMTP servers have a line limit set on the underlying HTML of the email. If this limit is reached, the HTML lines will break and a ! character is inserted just before the line break. This line limit is not set on all SMTP servers, for example emails sent via the Gmail SMTP server do not have this limit.


This is expected in accordance with RFC 2821 Simple Mail Transfer Protocol specification.


This needs to be resolved by the team who manages your SMTP server. The below articles link to some external resources that reference the behavior, and may be useful:

Please note these are not Alteryx links, or endorsed/supported by Alteryx.

Strange characters inserted in your email? Line length may be the issue.
Why do I get random exclamation marks in my email when using Insert From URL, cURL, and SMTP?