Thanks for the information. I don't really understand what happens to email once it gets passed to either sendmail or Net::SMTP.

The reason I was thinking SMTP may improve deliverability is that I can set the authentication account using SMTP. With sendmail accessed through MIME::Lite I don't have that control. This is an add-on domain in cPanel and I was thinking that the DKIM header in the email may not match the right parts of the authenticated sender. It's a bit of guesswork and clutching at straws really...

I do know the issue is not entirely with other mail providers blocking mail from my mailhost. I can send automated emails to two different addresses with different domains which are both my add-on domains within cPanel and one fails and one succeeds. They are (presumably) going through the same mail filtering software and I cannot imagine the milhost blocking mail that originated with itself.

In reply to Re^2: Replacing a module dependency by Bod
in thread Replacing a module dependency by Bod

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