The e-mail system was unable to deliver the message, but did not report a specific reason. Check the address and try again. If it still fails, contact your system administrator. #5.0.0 smtp; 5.3.0 - Other mail system problem 554-'5.7.1 Virus Heuristics.Phishing.Email.SpoofedDomain detected by the ClamAV AntiVirus' (delivery attempts: 0)...
Has anyone come across this type of error before? Mail can be sent only with text in the subject field. No new mails can be sent when data is added to the e-mail.
the remote end obviously uses ClamAV message scanning in their mailserver. Here's the explanation from the ClamAV FAQ:
Why is my legitimate HTML newsletter/email detected by ClamAV as Phishing.Heuristics.Email.SpoofedDomain? If it contains links in the form of href=”http://yourdomain.example.tld”> otherdomain.tld, where ProtectedDomain doesn’t belong to you and is listed in ClamAV database (like amazon.com, ebay.com, ...) then ClamAV detects it as a phishing attempt.
My legitimate emails from yourdomain.tld are detected as Phishing.Heuristics.Email.SpoofedDomain Please submit a sample, marking it as a false positive, phishing. If it’s really a false positive, we will add a whitelist entry for it.
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Firepower Threat Defense (NGFWv) on UCS E-series - Transparent Mode in HA
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I am currently unable to specify "crypto keyring" command when configuring VPN connection on my cisco 2901 router.
The following licenses have been activated on my router :