Fix for Broken Emails – when is this needed?
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I just spent a few hours troubleshooting the email sending through wpp_mail for a custom script, on a dev site where I installed Post SMTP for email logging. I was thinking I’m making some coding mistakes.
Disabling the plugin finally solved my problem, and then I noticed that the test email sent by the plugin had the same formatting errors. Getting here in the forum, I found similar problems and the solution mentioned here: https://postmansmtp.com/fix-for-broken-emails/ This also worked for me.
My question is now regarding some other live WP sites where I installed this plugin. What combination of PHP version and other environment variables makes POST SMTP to misbehave? Is this documented anywhere?
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