Knowledgebase : Inbound Mail Flow
This article has been migrated to our Help System HELP SYSTEM URL: https://help.proofpoint.com/Proofpoint_Essentials/Administrator_Topics/Other_Features/Acceptable_Use_Policy_for_Inbound_and_Outbound_Email
The Proofpoint Essentials default Spam settings should be suitable for most situations, but there are cases where some manual influence can help the system in making better decisions.  For example, marketing newsletters can be problematic in that the engi...
QUESTION: What is the difference between Spam and Opt-in Email? ANSWER: Customer-submitted messages help us to improve our spam models by providing us access to a wide variety of spam and valid mail data. Sometimes, customers are not certain whether a...
This article has been migrated to our Help System HELP SYSTEM URL:  https://help.proofpoint.com/Proofpoint_Essentials/Administrator_Topics/110_logs/'552_5.3.4_Message_size_exceeds_fixed_maximum_message%E2%80%99_even_though_Email_size_is_less_than_max_rec...
Redirecting customers MX records to point towards Proofpoint Essentials is crucial to the successful deployment of the solution and ensures all email is both filtered and delivered. Since we cannot do this for you, it will be necessary to contact your ho...
This article has been migrated to our Help System HELP SYSTEM URL:  https://help.proofpoint.com/Proofpoint_Essentials/Administrator_Topics/040_usersandgroups/Outbound_mail_rejected_-_554_5.7.1%3A_Relay_access_denied
This article has been migrated to our Help System HELP SYSTEM URL: https://help.proofpoint.com/Proofpoint_Essentials/Administrator_Topics/090_filtersandsenderlists/How_to_Add_MailChimp's_IPs_to_your_Safe_Sender_List
This rule is designed to quarantine external inbound message that appear to come from your organization. This tool will only work if you deliver your internal e-mail from your domain locally. If you receive e-mail from an external source using your domain...
This article has been migrated to our Help System HELP SYSTEM URL: https://help.proofpoint.com/Proofpoint_Essentials/Administrator_Topics/090_filtersandsenderlists/Attachment_Types_Proofpoint_Essentials_Blocks_By_Default
This article has been migrated to our Help System HELP SYSTEM URL: https://help.proofpoint.com/Proofpoint_Essentials/Administrator_Topics/110_logs/Troubleshooting_Mail_Flow_Issues
This article has been migrated to our Help System HELP SYSTEM URL:  https://help.proofpoint.com/Proofpoint_Essentials/Administrator_Topics/110_logs/Bounces_and_Deferrals
When moving from one filtering service to another, or setting up for the first time, there are steps to include when setting up Proofpoint Essentials that may be forgotten outside of our standard steps. Remember to add in our IP ranges [http://support.p...
This article has been migrated to our Help System HELP SYSTEM URL: https://help.proofpoint.com/Proofpoint_Essentials/Administrator_Topics/Other_Features/Users_bombarded_with_unsolicited_email_as_result_of_email_bomb
This article has been migrated to our Help System HELP SYSTEM URL: https://help.proofpoint.com/Proofpoint_Essentials/Administrator_Topics/110_logs/Proofpoint_Essentials_Attachment_Size_Limits
This error occurs when the customer in question has the 'Enable email relay' option switched on and someone tries to send email to a recipient address that is not registered with Proofpoint Essentials AND the recipient domain is configured in Proofpoint E...
This article has been migrated to our Help System HELP SYSTEM URL: https://help.proofpoint.com/Proofpoint_Essentials/Email_Spoofing
Once an account is completely setup on Proofpoint Essentials User Interface according to the getting started guide found, the partners/customers should wait until the top of the 30 minutes for the changes to update across Proofpoint Essentials Network bef...
This article has been migrated to our Help System HELP SYSTEM URL:  https://help.proofpoint.com/Proofpoint_Essentials/Administrator_Topics/hostedemailservices/You_Are_Not_Receiving_Emails_from_a_Website_Contact_Form#How_to_resolve
This article has been migrated to our Help System. HELP SYSTEM URL: https://help.proofpoint.com/Proofpoint_Essentials/Administrator_Topics/110_logs/Common_Error_Codes_found_in_Message_Details [https://help.proofpoint.com/Proofpoint_Essentials/Administrat...
To quarantine certain types of attachments that have been encrypted you can use the following filter criteria: Company Settings>Filters Create an Inbound filter with the following logic: If Attachment Name IS *.zip AND Attachment Type IS Undeciphe...
This article has been migrated to our Help System HELP SYSTEM URL:  https://help.proofpoint.com/Proofpoint_Essentials/Functional_Accounts_Not_Receiving_Emails
Remember to enter/edit Page Settings (Summary text, Stage classification, tags) and Page Restrictions as required. OVERVIEW Google may route "internal" mail externally causing an issue with Proofpoint Essential's spoof protection. There are two options...
In addition to our monthly release schedule, Proofpoint is continuously enhancing the Essentials infrastructure for our customers. Maintenance windows are posted on our support site https://support.proofpointessentials.com [https://support.proofpointessen...
OVERVIEW This page describes TLS behavior from a Proofpoint Sender and Recipient point of view. In both cases below, we do recommend that the filters created be for the recipient TLS OUTBOUND This is the Proofpoint sender's perspective. Most custo...
This article has been migrated to our Help System HELP SYSTEM URL: https://help.proofpoint.com/Proofpoint_Essentials/Administrator_Topics/How_to_configure_inbound_relaying_on_Office_365
NOTE: This knowledgebase does not address misclassifications (i.e. Spam that got through or desired email that got caught) as there is a separate knowledgebase article for that. The Proofpoint Essentials Support Team will need specific details in order ...
How To View Email Header In Outlook The user of Microsoft Outlook can easily view complete email header that is attached to each email to get detailed information about the received email. As headers are not normally visible to a user in actual email. T...
_INBOUND / OUTBOUND UI STATS FOR USERS_ _HOW TO ACCESS:_ _Go to Users & Groups, here you will see you users displayed by Name/Email Address and following their Role/Aliases and Inbound/Outbound stats. _ _If it is a user your wishing to check their s...
If Proofpoint Essentials users are unable to receive email from certain email addresses, it is most likely an issue with the sending mail server. However there are a few possible areas where this may be a configuration issue on the Proofpoint Essentials p...
The Inbound sender DNS check option provides an additional layer of protection against spam and helps ensure that inbound messages that might not have a destination to bounce to are not allowed in. The proper step to address this is to get the sender to p...
WEB FORM MESSAGES NOT RECEIVED We have frequent issues with web form messages not coming into the Proofpoint Essentials service. One of the key statements is: "This works to any other recipient, just not my domain name." We ask that you check these ...
To ensure the ongoing health of our platform, Proofpoint Essentials imposes limits on the number of messages sent and received, the number of recipients per message and the size of a message. Look at the messages below to identify your problem and learn...
WHAT IS BULK EMAIL? Email that is sent to a large list of recipients who have either directly or passively agreed to receive communications from the sender or senders. Proofpoint Essentials does not ordinarily quarantine legitimate bulk-email. In some c...
WHAT IS PROOFPOINT ESSENTIALS EMAIL MANAGEMENT PLATFORM? The service accepts and processes mail on behalf of its' subscribing customers. It passes safe traffic on and captures viruses, spam or any malicious content based on the unique set preferences of...
How do I retrieve internet headers from an email message? The following steps below explain how to provide the Support Team with email headers MICROSOFT OUTLOOK 2010 AND 2013 1.    DOUBLE CLICK the message to open it in a new window 2.    Click File ...
This article has been migrated to our Help System HELP SYSTEM URL:  https://help.proofpoint.com/Proofpoint_Essentials/Administrator_Topics/Other_Features/Quarantining_suspected_spoof
MICROSOFT REMOTE CONNECTIVITY ANALYZER The Microsoft Remote Connectivity Analyzer [https://testconnectivity.microsoft.com/] includes a Message Analyzer tool. Paste the message headers into the field provided and click ANALYZE HEADERS to produce the repor...
This article has been migrated to our Help System HELP SYSTEM URL: https://help.proofpoint.com/Proofpoint_Essentials/Knowledge_Base/Anti_Spam_and_Anti_Virus/Easy-spam-disclaimer_not_being_added
WHAT INFORMATION DO I NEED TO PROVIDE WHEN I REPORT A PROBLEM WITH EMAIL? The information required by the Proofpoint Essentials Support team differs depending on the delivery status of the email in question:    EMAIL HAS BEEN DELIVERED TO RECIPIENT ...
Reporting an email problem to Proofpoint Essentials Support requires a few pieces of information that will assist us in narrowing down and investigating the issue, or even just for us to make useful suggestions. NOTE: if this problem is regarding a misc...
This article has been migrated to our Help System HELP SYSTEM URL:  https://help.proofpoint.com/Proofpoint_Essentials/Administrator_Topics/090_filtersandsenderlists/Setting_up_sender_lists/How_to_edit_Safe_and_Blocked_Sender_Lists
Proofpoint Essentials is powered by Proofpoint’s MLX machine learning technology. This solution examines and filters millions of possible spam attributes in every email including message envelope headers and structure, email images, email sender reputatio...
This article has been migrated to our Help System HELP SYSTEM URL: https://help.proofpoint.com/Proofpoint_Essentials/Administrator_Topics/110_logs/SPF_Check_on_Essentials_for_inbound_mail  
This article has been migrated to our Help System HELP SYSTEM URL: https://help.proofpoint.com/Proofpoint_Essentials/Administrator_Topics/Alerts/spoolingalerts/Understanding_and_Setting_Up_Spooling_Alerts
_UI LOGS SAY “DELIVERED” BUT EMAIL IS NOT IN MY INBOX_ _ _ _When looking in your Proofpoint Essential Logs, and you see an email that has a STATUS of “Delivered” but it is not in your inbox. There are a few things to check:_ _ _ _ Click on the “De...
This article has been migrated to our Help System HELP SYSTEM URL: https://help.proofpoint.com/Proofpoint_Essentials/Administrator_Topics/110_logs/Understanding_Message_Header_Information
This article has been migrated to our Help System HELP SYSTEM URL:  https://help.proofpoint.com/Proofpoint_Essentials/Administrator_Topics/000_gettingstarted/Understanding_Proofpoint_Essential's_Mail_Flow
SITUATION Emails were delivering normally then stop unexpectedly. * Looking at the log it says: _"550 5.7.1 RECIPIENT {OR SENDER} ADDRESS REJECTED: USER EMAIL ADDRESS IS MARKED AS INVALID"_ * I cannot find user account in the logs, but user was r...
Proofpoint Essentials filters email for viruses and spam, along with some admin/user defined rules. The service is cloud based (no on premise hardware) and acts as a go-between the internet and your mail server. This is accomplished by modifying the mail ...
Once a new user has been registered on the system, the user would typically receive a welcome email containing their login details for the Proofpoint Essentials Interface. If they have not received a welcome email it may be because your default new user...
This article has been migrated to our Help System HELP SYSTEM URL: https://help.proofpoint.com/Proofpoint_Essentials/Administrator_Topics/hostedemailservices/Why_is_SPF_check_failing_with_Office_365 [https://help.proofpoint.com/Proofpoint_Essentials/Adm...
This article has been migrated to our Help System HELP SYSTEM URL: https://help.proofpoint.com/Proofpoint_Essentials/Preventing_WINMAIL.DAT_attachments https://help.proofpoint.com/Proofpoint_Essentials/Preventing_WINMAIL.DAT_attachments