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550: Invalid Recipient error when replying to another Plusnet member

FIXED
MKSlinky
Seasoned Pro
Posts: 860
Thanks: 239
Fixes: 3
Registered: 26-01-2016

550: Invalid Recipient error when replying to another Plusnet member

Having problems replying to my sister lately who I previously referred to Plusnet. Currently she is on holiday in the UK but all her emails I reply to are bounced straight back with the following:

 

A message that you sent to the following recipient could not be delivered due to a permanent error. ** The remote server 212.159.8.200 responded with: ** xxxxxx@xxxxxx.plus.com 550:Invalid Recipient xxxxxx@xxxxxx.plus.com This message was created automatically by mail delivery software on the server avasout

1 REPLY
MKSlinky
Seasoned Pro
Posts: 860
Thanks: 239
Fixes: 3
Registered: 26-01-2016

Re: 550: Invalid Recipient error when replying to another Plusnet member

Fix

SOLVED!

This error occurs when replying to emails sent from Webmail when the user is sending from their default email account, i.e. joeblogs@joeblogs.plus.com

I got my sister to change her default email address to her regular one in the 'identities' section in webmail and now the problem has gone away.

Strange that webmail rejects emails sent to a Plusnet address though! Crazy3