I am trying to email people with Sky email addresses but the mail is not delivered

[Comedy+Rich]

I am emailing from my work email address but all emails to Sky.com users fail to be delivered. I think the Sky servers are blocking me. How do I get unblocked? These are people that are mailing me and I cannot reply. 

[caesarome]

To use the Sky servers you need to add your work email address to your Sky account, so click here:

https://www.sky.com/help/articles/using-sky-yahoo-mail

And select Account Settings > Using alternative email addresses and follow the instructions.

[Comedy+Rich]

Thanks but I do not have a sky address. I am just emailing generally to people from my @outofboundscomedy.co.uk address. 

[caesarome]

What outgoing SMTP server are you using ?

[Comedy+Rich]

mail.pipeten.co.uk

[caesarome]

And what happens when you send these emails, if you get an error message what does it say ?

[Comedy+Rich]

I get this email. This has happened several times and to several recipients. 

Hi. This is the qmail-send program at pipeten.co.uk.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

<m******.c@sky.com>:
Sorry, I wasn't able to establish an SMTP connection. (#4.4.1)
I'm not going to try again; this message has been in the queue too long.

[caesarome]

You did say you don't have a Sky email address so what is that sky email in the error message ?

[Comedy+Rich]

That was one of the people I was emailing. I am on a Pipeten account. I emailed peoole that have a sky account, several different addresses, and I keep getting the failure email back after several days. 

[jayach]

Have you spoken to Pipeten about this? It sounds like a misconfiguration at their end.

[JamieMoy]

I would make sure you have their correct SPF record set on your domain as per this guide, https://www.pipeten.com/support/legacy/email/adding-an-spf-record/

This would usually help to improve deliverability / avoid going to peoples spam. If a provider is blocking your emails this will either be because your emails look like spam (missing body, embedded images, etc) or some other reason and they should generate a bounce email which would tell you why it was rejected.