https://community.bt.com/t5/General-email-queries/Re-550-spam-or-phishing-or-malware/m-p/2308725#M106301 <P>I have been getting this same issue for the last few weeks. I send a newsletter to a contact list and have been doing so for the past year until this error started to appear. I'm using a home network and have 2 modems to choose from: BT and EE. I am getting the same error on both even after turning off to obtain a new IP address.</P><P>This is driving me mad and affecting my business plans. All suggestions welcome.</P><P>My newsletter is text, a screenshot and a PDF attachment. I've tried removing some elements but still get the error. And today I just tried sending just a weblink to my LinkedIn page and that came back the same..</P> Fri, 11 Aug 2023 10:35:05 GMT thepipesmoker 2023-08-11T10:35:05Z https://community.bt.com/t5/General-email-queries/Re-550-spam-or-phishing-or-malware/m-p/2308725#M106301 <P>I have been getting this same issue for the last few weeks. I send a newsletter to a contact list and have been doing so for the past year until this error started to appear. I'm using a home network and have 2 modems to choose from: BT and EE. I am getting the same error on both even after turning off to obtain a new IP address.</P><P>This is driving me mad and affecting my business plans. All suggestions welcome.</P><P>My newsletter is text, a screenshot and a PDF attachment. I've tried removing some elements but still get the error. And today I just tried sending just a weblink to my LinkedIn page and that came back the same..</P> Fri, 11 Aug 2023 10:35:05 GMT https://community.bt.com/t5/General-email-queries/Re-550-spam-or-phishing-or-malware/m-p/2308725#M106301 thepipesmoker 2023-08-11T10:35:05Z https://community.bt.com/t5/General-email-queries/Re-550-spam-or-phishing-or-malware/m-p/2308733#M106302 <P>Why on earth would you run a business using a flaky residential email service?</P> Fri, 11 Aug 2023 11:06:23 GMT https://community.bt.com/t5/General-email-queries/Re-550-spam-or-phishing-or-malware/m-p/2308733#M106302 licquorice 2023-08-11T11:06:23Z