unwanted spaces inserted into the middle of php-generated html email body 1

[PeDa]

I am generating a HTML e-mail containing a table with php 7.4. If my table contains a limited number of records (say 10) everything works fine (in Microsoft Outlook) , but with longer tables a space is periodically (about ever 1200 characters - very rough estimate) inserted into the html of the mail, producings strange effects - for example when ' ' is turned into '&n bsp;'. The html renders quite correctly in the browser.

 

[spamjim]

Wrap content right after it is defined.

$message_body = wordwrap($message_body, 72);

Edit: Oops. Apparently, I'm a rule breaker. The PHP manual suggests 70. See Example 1:

https://www.php.net/manual/en/function.mail.php

 

[PeDa]

Yes indeed! solved; thank you very much (note to self: in future read the documentation right down to the bottom)