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Message through MSG to group of recipients wrongly fails with user unknown error for all recipients
Issue: A mail targeted to multiple recipients returns with the message saying that "the following addresses had permanent fatal errors", followed by a list of all recipients. However when sending the same message to individual users it seems to work. It seems that if one recipient is invalid, all recipients get the same…
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MSG is blocking emails due to blacklisted IP
Issue: Trying to send emails through MSG results in the following Non-Delivery Report (NDR) message: SMTP Protocol Returned a Permanent Error 550 5.7.0 Blocked - see https://ipcheck.proofpoint.com/?ip=<ip.address.goes.here> Resolution: The sending IP-address has been blocked by Proofpoint Dynamic Reputation (PDR). This…
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MSG not sending emails to external addresses
Issue: * The MSG appliance has stopped sending emails out to external domain addresses * Sending emails to internal domain addresses works without issue * Receiving emails from any sender works normally * Outgoing connector is showing errors about invalid certificates Resolution: The problem might be caused by an invalid…
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Messaging Security Gateway (MSG) LDAP import profile is not removing users that are no longer in the Active Directory (AD)
Issue: The user repository in the Messaging Security Gateway (MSG) appliance contains a large amount of users that have been imported from Active Directory, but are no longer part of it. Can the appliance automatically remove users from its user repository as they are removed from Active Directory? Resolution: You can…
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Spam message has passed through F-Secure Messaging Security Gateway (MSG) to a recipient
Issue: Recipients receive spam messages, why did F-Secure Messaging Security Gateway (MSG) not block these spam messages? Resolution: If recipients receive spam messages, it could be because of the following potential root causes: 1. Low spam score (False Negative) Check spam scores from message headers. Look for…
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Missing intermediate certificate in MSG
Issue: Recipients of encrypted mails are receiving warnings about untrusted pages and/or certificates when attempting to view messages. Looking up the MSG address using an SSL checker gives the following type of reply: "The certificate is not trusted in all web browsers. You may need to install an Intermediate/chain…
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F-Secure Messaging Security Gateway (MSG) license still shows expired despite the renewal
Issue: I have renewed my F-Secure Messaging Security Gateway (MSG) license but the appliance still states the license is expired, how can I fix this issue? Resolution: Despite renewing your F-Secure Messaging Security Gateway (MSG) license, there is a possibility the license expiry date is not updated in our system.…
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Message is getting blocked by MSG maxsize firewall rule despite being seemingly smaller than the limit
Issue: Emails are blocked by the Messaging Security Gateway (MSG) or Protection Service for Email (PSE) maxsize firewall rule despite being seemingly smaller than the limit. Resolution: The maxsize firewall rule may include multiple criteria. Most likely one of the other criteria are being met by the message. Here is an…
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MSG alerts ROMB Battery is low and that Raid is in Write-Through Mode, Performance will be degraded
Issue: Messaging Security Gateway (MSG) appliance is reporting the following alerts: * crit eid.plinx.log.sel Battery ROMB Battery | Low | Asserted * err eid.plinx.raid Raid is in Write-Through Mode, Performance will be degraded. Resolution: These alerts are related to the RAID battery relearning and are completely normal…
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Ensuring that a mail server is responding
Ensuring that a mail server is responding This article describes how you can check whether a mail server is responding or not. It explains how to do this in principle and provides links to more extensive troubleshooting material. Note: This article assumes some technical knowledge of the relevant operating system. If you…