Is it possible to increase the width of the email content in text/plain format?

Question

Email

Good day!

Tell me, please, is it possible to somehow adjust the width of the content of the letter, if it is transmitted in the text/plain format? And if possible, how and where?

The bottom line: a letter in this format comes very compressed in width, prices are cut off and it all looks extremely unattractive.

Wordpress website with Woocommerce store.

Thank you in advance.

Answer 1

Found a solution - increased the maximum length of the line, now the break does not occur.
If suddenly it will be useful to someone, then:
In the file /wp-content/plugins/woocommerce/includes/emails/class-wc-email.php on line 539, change the value "70":

if ( 'plain' === $this->get_email_type() ) {
      $email_content = wordwrap( preg_replace( $this->plain_search, $this->plain_replace, wp_strip_all_tags( $this->get_content_plain() ) ), 70 );
    } else {
      $email_content = $this->get_content_html();
    }

    return $email_content;
  }

Answer 2

Formally, to solve this problem, you need to specify format=fixed in Content-type,
Content-type: text/plain; format=fixed
see https://tools.ietf.org/html/rfc2646
then a linefeed is treated as the end of a line, with format=flowed a linefeed is treated as the end of a paragraph and the lines are automatically split to fit the width of the screen.
Somewhere this may work, but in practice, in modern realities, this does not work, because. no one uses fixed fonts and a fixed screen width for a long time, and an ugly line is a lesser evil than horizontal scrolling. Use HTML and draw a sign.