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Koozali.org: home of the SME Server
Obsolete Releases
SME Server 9.x
Topic:
mail from one client does not arrive
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mail from one client does not arrive
16 Replies
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mmccarn
2,626
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Re: mail from one client does not arrive
«
Reply #15 on:
August 07, 2019, 12:22:38 PM »
Quote from: Mophilly on August 06, 2019, 05:18:12 PM
My contact there wrote, "...not able to connect to your email server..."
Fail2ban
on your SME server might cause this. It took me a while to get fail2ban->IgnoreIP set correctly.
You could also search the
Firehol blocklist-ipset github repo
for your SME server's WAN IP address to see if you've been listed in any firewall-level blocklists. Search for your full IP, then search for the first 3 octets (then 2, then 1) in case you're listed as part of a netblock. Put quotes around your search string to keep Github from returning every entry containing any of your octets...
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Mophilly
384
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Re: mail from one client does not arrive
«
Reply #16 on:
August 12, 2019, 12:16:35 AM »
Thank you for the suggestion. We added the IP addresses used by our client to the fail2ban whitelist. Hopefully that will help.
I looked through the Firehol blacklist, or at least some it. It appears to be quite extensive.
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Koozali.org: home of the SME Server
Obsolete Releases
SME Server 9.x
Topic:
mail from one client does not arrive