Unable to send emails.
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- Re: Unable to send emails.
03-08-2020 8:50 AM
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Hi,
I've recently got a EE 4G router because the performance is 10x what I get over the phone lines, however I still want to use my plustnet/force 9 emails (I'm still paying for the force9 broadband).
Everything was working perfectly, sending and receiving emails via the EE box but going through the plusnet servers.
Until sometime on Saturday outgoing emails stopped working.
I get the following email when trying to send an email...
SASL authentication failed; server relay.force9.net[212.159.9.104] said: 535 ...authentication rejected as source IP has a poor reputation
My settings are...
- SMTP server relay.force9.net
- SMTP Port 25 (Tried 587, made no difference)
- Encryption Mode None
- Authentication required Yes
Using the mail client on my phone, when I connect it to the plusnet Wi-Fi it can send emails, when I connect it to the EE Wi-Fi it fails with the authentication error.
Has anyone else encountered this issue?
Fixed! Go to the fix.
Re: Unable to send emails.
03-08-2020 9:05 AM
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Yes, I've seen it occasionally when using a mobile network. The IP address you're allocated when on a mobile network will vary each time you connect. The error means that whoever previously had that IP had probably sent lots of spam and so that IP has been given a poor reputation, and so the PlusNet mail system won't accept mail from that IP. It's usually a transient situation and will clear either when you get a new IP or when that IP reputation improves after a day or so.
Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.
03-08-2020 10:25 AM - edited 03-08-2020 10:25 AM
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Yep as @MisterW said it sounds like your IP has been blacklisted.
I would turn off mobile data for a while (maybe an hour or two), reconnect and see if improves anything (i.e. I mean works).
Re: Unable to send emails.
03-08-2020 2:40 PM
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