My emails are blocked when sending to Gmail

[#1]

Reporting-MTA: dns; avasout-peh-002 [84.93.238.88]
Received-From-MTA: dns; DESKTOPPHPVRN3 [147.147.18.131]
Arrival-Date: Thu, 23 Nov 2023 12:02:40 +0000

Final-recipient: rfc822; morcott99@gmail.com
Diagnostic-Code: smtp; 550-5.7.26 This mail has been blocked because the sender is unauthenticated.

Last-attempt-Date: Thu, 23 Nov 2023 12:02:41 +0000

[#2]

@morcott99 Are you sending when at home i.e. on your Plusnet connection, or when away from home?

[#3]

@morcott99 you might want to read this thread https://community.plus.net/t5/Email/Mail-bouncing-to-gmail/td-p/1906281 and then come back with any questions

[#4]

I may be reading this wrong, but the OP appears to be trying to send from a gmail account via the PN mail servers?

[#5]

@jab1 Either you're reading it wrong or I am ? I thought it was sending TO a gmail account , that's what the title (and the bounce) says

[#6]

@MisterW Second part of the rejection message:

Final-recipient: rfc822; morcott99@gmail.com
Diagnostic-Code: smtp; 550-5.7.26 This mail has been blocked because the sender is unauthenticated.

Last-attempt-Date: Thu, 23 Nov 2023 12:02:41 +0000

Suggests they are sending from a gmail account?

[#7]

Que? Final-recipient: rfc822; morcott99@gmail.com

Surely, thats TO a gmail address ?

[#8]

OK, but the morcott99@gmail.com looks to me to be the OPs address?

[#9]

I am sending at home from outlook using my plusnet connection

[#10]

Are you sending from a plusnet email address e.g something@<accountname>.plus.com or your own domain e.g something@<mydomain> ?

[#11]

I have updated my mail server settings to mapi.plus.net and smtp.plus.net and still get the same error when sending to gmail ONLY

Reporting-MTA: dns; avasout-peh-001 [212.159.14.17]
Received-From-MTA: dns; DESKTOPPHPVRN3 [147.147.18.131]
Arrival-Date: Thu, 23 Nov 2023 14:03:23 +0000

Final-recipient: rfc822; morcott99@gmail.com
Diagnostic-Code: smtp; 550-5.7.26 This mail has been blocked because the sender is unauthenticated.

Last-attempt-Date: Thu, 23 Nov 2023 14:03:23 +0000

[#12]

yes but what is significant is what you are using as the sending (FROM) address as I asked earlier

[#13]

---

@morcott99 wrote:

I have updated my mail server settings to mapi.plus.net and smtp.plus.net and still get the same error when sending to gmail ONLY

Might be a typo, but it should be imap.plus.net and relay.plus.net - unless I've finally lost it - not impossible. 😉

[#14]

You are correct - those are the servers I used.

Outlook verified the send and receive on them and all other mail is working

[#15]

So, exactly what address are you sending from - as has been asked before?