Sophos Email customers using IP-based mailflow rule connectors must migrate to certificate-based configuration by March 31st. To see if you're affected Click Here.

  • Smart Banners - "Allow sender" what's the benefit

    I am wondering what the benefit of selecting "Allow sender" for a flagged e-mail is. The only thing that it affect is that in future E-Mails from the contact the "Allow sende" link isn't there any longer. I would have expected that the warning itself…
  • 554 5.7.1: Recipient address rejected: Access denied trying to email a new Microsoft 365 group

    My organization uses Microsoft 365 with Sophos Central Email Security as the email filter. I need to create a new distribution group that can receive email from outside the company. I've tried creating it as a Microsoft 365 group and as a regular distribution…
  • Sophos Central Email Security - How to add multiple Azure AD syncs for different 365 tenants

    I have the Directory service configured for one of my domains and everything works as expected. I need to add a second domain with a different 365 tenant to Email security and have not been able to find out how. Any guidance would be appreciated.
  • Email forwarding : 550 5.7.1 Command rejected

    Hi, we have a problem with forwarding emails. Exchange 2013 on Prem. Using Email Security on Sophos Central. This seems to have come up on here before, but I cant find a solution. Any help appreciated. Thanks Trev I use exchange to forward…
  • Mail delivery to following recipients failed: 550 5.7.1 Command rejected

    Hi, trying to forward emails external using Exchange 2013 on Prem. Sophos Central Email setup. All emails come in and go out as normal, just Forwarding fails External emails sent to me from internal and external users are not being forwarded on…
  • Time of Click user guide

    We teach our users to hover over links in emails to determine where the link goes before clicking on it. With Time of Click the URLs are rewritten so they are difficult to decipher them before you click. Has anyone written a guide explaining this to users…
  • Sophos Central Email: spam issues

    We have reported several issues to the Sophos support but basicly it hasn't been fixed. The problem is related to impersonating your domain email adresses with malicious urls. - Base email Security DMARC and SPF are checked against the Helo email…
  • M365 Mail Connector Setup Failure

    I had a domain connected and working. Out of idle curiosity, I hit the test button on the M365 Mailflow page associated with one of my domains. After running for a while, it reported the test failed and changed the domain status to disconnected. The reconnect…
  • Email Advanced Trial question

    adquiri de prueba email advanced, genere politicas de tranferencia de archivos y envio de correos con informacion catalogada con cienrtas palabras, mi pregunta en concreto seria si despues de vencida la licencia de prueba queda activa estas politicas…
  • Problems with new M365 Mailflow

    I have created a Support ticket for this but thought I would post here also. I've been testing M365 Mailflow in Sophos Email and I have the following problems: Sophos in mailflow mode is not detecting Gtube test spam https://spamassassin.apache…
  • Q | Central email | Inbound destination (multihost)

    Hello community, Next a doubt: If I maintain 2 or more mail servers in cluster, and I assign in inbound destination a FQDN of a type A record for example mail.abc.def pointing to IP 1.2.3.4 and 5.6.7.8. Once the mail is inspected by Central Email, and…
  • VIP Impersonation requires an exact name match

    I have started to see slightly more sophisticated phishing attempts that are bypassing Sophos VIP Impersonation. Instead of the classic From: "CEO Name" [ceoname@fakedomain.com] which gets blocked because "CEO Name" matches, we are now seeing: From…
  • Sophos MTA relay as smarthost desination

    https://docs.sophos.com/central/Customer/help/en-us/central/Customer/tasks/settingupsmtp.html Reviewing the documentation on using the outbound relay with Exchange and having the outbound mta as a smart host. What prevents unauthorized servers from…
  • CSV files with malicious code

    https://www.bleepingcomputer.com/news/security/malicious-csv-text-files-used-to-install-bazarbackdoor-malware/ CSV files are currently not on the default Sophos Attachment file type list. They can just like any other Office file contain macro’s or functions…
  • Sophos Central Email Gateway - Blocking Outbound Messages

    I cannot send a Cisco support file (an EXE inside a ZIP) without receiving the following message: I have turned off all advanced features in the email policy, and there appears to be no outbound policy specific options. How do I allow myself to send an…
  • Is it possible to have an Outbound relay configuration with the Azure/AWS Mail server deployment?

    Hi Team, Basically, I have a mail server on Azure and AWS, but I am unable to configure outbound relay for the Central Email. Central Outbound relay server doesn't accept connection on any Port except 25 and Port 25 is blocked for AWS and Azure. Is…
  • 100% Spam email getting delivered to users

    Sophos Email Advanced, while their are many email quarantied as spam their is also email that are 100% spam gets delivered to users.
  • Smart banner taking up whole email

    Hi, We recently had an issue where a user was replying\forwarding an email from an external user. The email had the smart banner on it from the external user. When our user replied to the email our internal users that received it saw either a blank…
  • Why are my emails being blocked to certain addresses by uri.cal1.sophosxl.com?

    For some weeks now, some – but not all – emails I have been sending from Apple Mail are getting bounced. In my bin, I can see a Google red traffic light icon. And also the following: 554 5.7.1 Service unavailable; Sender address [xxxxx] blocked…
  • Override Domain Block

    I am hoping I am in the right forum for this question, looking for assistance with Sophos Central Email Security... When you add a domain to the block list, is it possible to whitelist a single address within that domain? For example, we get a lot…
  • Super Admin Management of Employee Self-Service Portals

    As the Super Admin, am I able to manage each self-portal if needed? Can I see who has responded to the company-wide Invitation to set up a self-portal? Can I see each employee's Allow/Block List and/or manage it? Can I change an employee's self-service…
  • Ability to edit User-specific whitelist in Central Email

    Hi all We currently do not have the Self-Service enable but would like to create user-specific whitelists. Does anyone know if there is somehow a possibility in Central Email to manage the Users whitelist as an Administrator? I did not find any…
  • Self Service Quarantine

    Is there a way or a plan to allow self service portal users to select multiple emails?
  • DMARC Setup - Step By Step Guide - Email Gateway

    Hello Sophos Community, We have recently implemented SPF and DKIM protection to our email which was fairly simple due to Sophos providing work-through guides and support. However, implementing DMARC is proving harder to implement. Currently, we have a…
  • Azure AD Sync API Permissions

    The setup guide shows that i need to add Azure Active Directory Graph Directory.Read.All But this is not possible anymore. The option is grayed out.