Rejected emails - 554 Your message looks like SPAM

[BB12345]

Hi, 

I'm having a problem with emails from my organisation being sent to btinernet.com addresses rejected as spam.

380 have been blocked in the last two weeks. 

smtp; 554 Message rejected on 2022/11/24 10:29:37 GMT, policy
    (3.2.1.1) ID (62BBCAA01B53B9FA) - Your message looks like SPAM or has been
    reported as SPAM

We are not on any block lists. Specifically these are invoice emails with PDF attachments. Our other emails sent by the same means are delivered. 

How can I go about getting our address whitelisted please? 

Thanks

[licquorice]

https://www.bt.com/help/email/fix-a-problem/sending-or-receiving-email/bt-email---best-practices-for...

[BB12345]

Thanks for the info, those requirements are all met and we're not on a blocklist. 

Our other emails to btinternet.com (order confirmations, despatch notifications) get through fine and other providers are not blocking us. 

[licquorice]

Then all I can suggest is you contact the postmaster on the address in the link.

[BB12345]

Thanks. I have already done so but not sure I'll get a reply. I'll give it more time. 

[licquorice]

Yeah, they're not very speedy in replying I'm afraid.