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TLS support on secondary MX server

February 20, 2019, 7:04 am
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We are running verifications on our domain to show that our email is encrypted.  Checktls.com (and others) is showing our domains are not secure due to the secondary Mx record not having TLS enabled.

I know this is by Symantec's design, but I am concerned that incoming mail could potentially transit through the secondary server.....and therefor be unencrypted.  Does anyone know of any Symantec resources that address this issue?  I would like to have something in our files to show potential auditors that we are secure since I can't show a checktls.com report that would show that.

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email bounce back 533 error even we do not use messagelab at all

February 20, 2019, 6:40 pm
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Our postfix in ubuntu server sends emails to our own abc.com domain. We do not use any symantec messagelab service at all. the DNS used is google 8.8.8.8

For the past few days, we have some bounceback from messagelab saying we try to use their server to relay.

I wonder how this could happen. Any help is appreciated. I could give actual domain if private message is allowed to symantec staff. 

Feb 20 14:19:26 XXXXX postfix/smtp[9690]: 7B87F20172: to=<steve@abc.com>,

relay=cluster3.eu.messagelabs.com[85.158.142.99]:25, conn_use=2, delay=215, delays=0/212/1.3/1.2, dsn=5.0.0, status=bounced (host cluster3.eu.messagelabs.com[85.158.142.99] said: 553-you are trying to use me [server-18.tower-224.messagelab 553-s.com] as a relay, but I have not been configured to 553-let you [YYY.YYY.YYY.YYY, XXXXX.com] do this. 553-Please visit www.symanteccloud.com/troubleshooting for 553-more details about this error message and instructions 553 to resolve this issue. (#5.7.1) (in reply to RCPT TO command))Feb 20 14:19:26 XXXXX postfix/smtp[9690]: 7B87F20172: to=<steve@abc.com>, relay=cluster3.eu.messagelabs.com[85.158.142.99]:25, conn_use=2, delay=215, delays=0/212/1.3/1.2, dsn=5.0.0, status=bounced (host cluster3.eu.messagelabs.com[85.158.142.99] said: 553-you are trying to use me [server-18.tower-224.messagelab 553-s.com] as a relay, but I have not been configured to 553-let you [YYY.YYY.YYY.YYY, XXXXX.com] do this. 553-Please visit www.symanteccloud.com/troubleshooting for 553-more details about this error message and instructions 553 to resolve this issue. (#5.7.1) (in reply to RCPT TO command))

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Email being filtered as spam

February 21, 2019, 2:45 pm
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As many other people on this forum we are having troubles delivering mail to our customers that are using Symantec cloud services, since all our messages (sent by Office365) are rejected with the same reason:

Remote Server returned '554 5.0.0 <server-26.tower-239.messagelabs.com #5.0.350 smtp;550 5.0.350 Remote server returned an error -> 553 Message filtered. Refer to the Troubleshooting page at;http://www.symanteccloud.com/troubleshooting for more;information. (#5.7.1)>'

We have tried to send a sample message to investigation@review.symantec.com, as suggested by technical articles (like https://support.symantec.com/en_US/article.TECH250...) and by some Symantec fanboy on this forum, but the result is ironically:

Remote Server returned '554 5.1.2 < #5.1.2 smtp; 554 5.1.2 Recipient address rejected: User unknown>'

This is really annoying, is there anyone from Symantec who can do something about it or is this forum left on his own ?

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How Can i achieve following scenario in cloud email security. ???

February 22, 2019, 8:18 am
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Hi Team,

How can i replace Microsoft EOP with symantec cloud security .

Scenario that we want to achive attached with this.

Please help 

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My emails are being rejected by your filters

February 25, 2019, 8:05 am
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Hello,

i am receiving delays 421 4.4.1 timed out errors to 3 of your clients.

my sending IP is 68.117.112.132 and is not blacklisted.  I have no apparent issues with our server.

Can you please reset your filter

thanks

joe

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421 Service Temporarily unavailable Mails rejected Protocol/SocketError

February 26, 2019, 12:11 pm
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We have the same issue as others.

We can‘t send any mails from our domain d-parts.de.
Tried sending logs to investigation@review.symantec.com but failed with error "554 5.1.2 Recipient address rejected: User unknown".

Please fix problems or set our ip 213.179.142.110 to your global whitelist.

Our mail server IP is not listed at any RBLs and we already checked Symantec‘s advisory from previous posts.

Below is the SMTP log from our server trying to connect to Symantec‘s server. Same problem with any mail addresses using messagelabs.com

SMTP,symantec.com,+,DnsConnectorDelivery 61e74520-c04c-4aac-940f-8c3ed6c76a61;QueueLength=TQ=1;RL=1;.
SMTP,symantec.com,>,"cluster4.us.messagelabs.com[67.219.251.49, 67.219.246.193, 67.219.250.97, 67.219.250.193, 67.219.247.49, 67.219.246.97], cluster4a.us.messagelabs.com[54.174.147.140, 52.73.243.182, 50.19.165.100]"
SMTP,symantec.com,>,Established connection to 67.219.251.49
SMTP,symantec.com,-,Messages: 0 Bytes: 0 (Attempting next target)
SMTP,symantec.com,*,Session Failover; previous session id = 08D696A6F7ADC705; reason = ProtocolError
SMTP,symantec.com,+,DnsConnectorDelivery 61e74520-c04c-4aac-940f-8c3ed6c76a61;QueueLength=TQ=0;AN=1;.
SMTP,symantec.com,>,Established connection to 67.219.246.193
SMTP,symantec.com,-,Messages: 0 Bytes: 0 (Attempting next target)
SMTP,symantec.com,*,Session Failover; previous session id = 08D696A6F7ADC706; reason = ProtocolError
SMTP,symantec.com,+,DnsConnectorDelivery 61e74520-c04c-4aac-940f-8c3ed6c76a61;QueueLength=TQ=0;AN=1;.
SMTP,symantec.com,>,Established connection to 67.219.250.97
SMTP,symantec.com,-,Messages: 0 Bytes: 0 (Attempting next target)
SMTP,symantec.com,*,Session Failover; previous session id = 08D696A6F7ADC707; reason = ProtocolError
SMTP,symantec.com,+,DnsConnectorDelivery 61e74520-c04c-4aac-940f-8c3ed6c76a61;QueueLength=TQ=0;AN=1;.
SMTP,symantec.com,>,Established connection to 67.219.250.193
SMTP,symantec.com,-,Messages: 0 Bytes: 0 (Attempting next target)
SMTP,symantec.com,*,Session Failover; previous session id = 08D696A6F7ADC708; reason = ProtocolError
SMTP,symantec.com,+,DnsConnectorDelivery 61e74520-c04c-4aac-940f-8c3ed6c76a61;QueueLength=TQ=0;AN=1;.
SMTP,symantec.com,>,Established connection to 67.219.247.49
SMTP,symantec.com,-,Messages: 0 Bytes: 0 (Attempting next target)
SMTP,symantec.com,*,Session Failover; previous session id = 08D696A6F7ADC709; reason = ProtocolError
SMTP,symantec.com,+,DnsConnectorDelivery 61e74520-c04c-4aac-940f-8c3ed6c76a61;QueueLength=TQ=0;AN=1;.
SMTP,symantec.com,>,Established connection to 67.219.246.97
SMTP,symantec.com,-,Messages: 0 Bytes: 0 (Attempting next target)
SMTP,symantec.com,*,Session Failover; previous session id = 08D696A6F7ADC70A; reason = ProtocolError
SMTP,symantec.com,+,DnsConnectorDelivery 61e74520-c04c-4aac-940f-8c3ed6c76a61;QueueLength=TQ=0;AN=1;.
SMTP,symantec.com,>,Established connection to 54.174.147.140
SMTP,symantec.com,-,Messages: 0 Bytes: 106 ()

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Unable to receive email after Enforced TLS enabled

February 27, 2019, 3:03 am
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Hi All,

i'm hoping someone can help me, I've tried emailing support@messaglabs.com but got an auto reply saying they no longer respond to emails.

My company provides email services to a company that is a customer of a UK bank that uses messagelabs. The Bank recently enabled enfored TLS for this customers domain, however ever since no emails have come through.

I've been sent a bounceback which looks like this - 

X-Supplementary-Info: < #4.7.5 smtp; 454 4.7.5 [internal] verify
 error:num=21:unable to verify the first certificate:depth=0:/OU=Domain
 Control Validated/CN=*.vesk.com>

I've read a few things that suggest that Symantec don't support wildcard certificates, however I was hoping to get some kind of definitive answer before I suggest we go and buy a new Certificate, only to find out that wasn't the isssue.

Can anyone give me some help as to what the above error means?

Many Thanks 

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Please remove my mail server IP address from your blacklist

February 28, 2019, 5:28 am
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Hello,

I am the administrator of the mail server of the www.ah1z.com domain name, which is a family used mail server.

I saw on your https://ipremoval.sms.symantec.com/ipr/lookup tool that my mail server IP 195.154.53.137 was flagged with a negative reputation.

As a result and since Microsoft servers are using your products for their mail servers, I can’t send any mail to Microsoft mail accounts from my mail server anymore.

I’ve tried to contact your company and Microsoft by the designed contact forms but I got no answers 2 times in a row.

I manage my mail server properly so I’m 100% sure that it’s not infected or used to send spam. I’ve been using it over 3 years without any problem. Moreover my server IP address is not blacklisted anywhere else on any other blacklist on internet.

Could you then please remove my mail server IP address from your blocklist so I can send mail to my family members please?

Thanks in advance for your help and have a nice day.

Best regards,

Kevin.

kevin@ah1z.com

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Released mail from spam is not coming into the normal inbox

February 28, 2019, 7:28 am
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--Urgent--

Can someone help me, please.

I have some mails which areseen as spam and are  now in the email quarantine. These mails are not spam.

I've released the emails several times the last two days but they are not coming into my normal inbox which I would expect.

I urgently need to go into these mails.

Does someone know how to resolve this???

Thank you in advance

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553 Message filtered - zero support from Symantec

February 28, 2019, 10:16 am
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Let me start off with stating that we are currently not a Symantec Cloud Email customer. However a lot of our clients appear to be using this product.

Start around Feb 25, 2019 we would get a bounce back with the following message:

553 Message filtered. Refer to the Troubleshooting page at http://www.symanteccloud.com/troubleshooting for more information. (#5.7.1)

This comes from the destination email server that has Symantec Cloud Email in use, which in our case is at least 5 of our clients.

The only thing that gets the email through is to remove all links and images before sending out the email. Of course this doesn't work with Calendar invites as those contain links (Google Calendar).

Following this article https://support.symantec.com/en_US/article.TECH246726.html#553-filtered everything checks out perfectly. In fact an external tool like mxtoolbox says we are just fine as well. 

I even submitted a sample to the email address provided but I don't even get an auto-responder. Also it's been 2 days and no response.

Calling support just gets met with a "You can't call us as you don't have a subscription" so that's no help.

There is very little diagnostic information in order to solve this issue provided by the response and no way to figure out why it's being blocked. We don't know if this is more global or just affecting anything from our domain (really shouldn't because google calendar invites come from a different address with ours as the reply-to).

We were interesting in your product up to this point, however I cannot recommend this product to anyone as it's going to block more legitimate emails than spam. 

Am I the only one with these issues? What else is there to do? Waiting weeks to get this cleared is not a valid option, we could just start using USPS at that point for faster response and reliability.

HELP

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Legitimate emails being blocked - please help

March 1, 2019, 7:40 am
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Currently we seem to be having legitimate emails to a number of our customers being blocked by Symantec Cloud.

During our initial investigations it became apparent that there was a misconfiguration within our DNS settings regarding DMARC, this has now been rectified to the best of our knowledge and I have confirmed this with sever online tools including:

Dmarcian

https://dmarcian.com/dmarc-inspector/

MXToolbox

https://mxtoolbox.com

We have waited to ensure these new settings have propagated but still we seem to be getting our emails returned, as a further precaution we have mandated that all users change their passwords.

We really need your assistance in resolving this issue, an example of the error portion of a returned emails is below

Any help at this point very much appreciated

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MessageLabs blocking our mail even though our reputation is good

March 4, 2019, 7:46 am
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I'm the new Exchange admin for my company. We run a hybrid O365/Exchange 2010 environment. Our O365 emails to MessageLabs clients have no issue, but our on-prem Exchange 2010 emails either have delayed delivery of multiple hours, or just fail completely (mostly they just fail).

This issue has been ongoing for several months. The previous Exchange admin who was working on this issue said that it had to do with MessageLabs throttling us. I've checked our reputation and it is good. 

This is affecting our daily business with a large number of clients that use MessageLabs.

Can you please look into this and see if you can remove the throttling on our IPs?

Our public IPs are 128.144.100.0/24

Our MX is albertainnovates.ca

We route our email through Proofpoint for email security, their IP address is 67.231.151.179 (this issue existed before we routed through Proofpoint, we just started using them a couple months back)

Please let me know if you need any more information. 

This sounds very similar to the issue posted here: https://www.symantec.com/connect/forums/messagelabscom-blocking-our-mail-even-though-our-reputation-good and someone was able to resolve it, I'm hoping I can expect the same.

Thanks!

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Cannot send mail to cluster8.eu.messagelabs.com

March 6, 2019, 7:53 am
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Cannot send email to multiple domains using the Symantec Connect. 

Sending email from 108.169.173.242 - cotsworks.com

Traceroute never completes, which is firewall related I'm sure. I have sent an email to Investigation@review.symantec.com and support@messagelabs.com

Please let me know how I can further troubleshoot this error.

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Delivery has failed to these recipients or groups:

March 11, 2019, 10:18 am
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Some of our clients and prospects are not getting our emails and we are receiving the following reply email:

The following organization rejected your message: cluster1.us.messagelabs.com.

How can we get this corrected?  All emails are being sent from 70.165.35.66. MX: cybernetman.com or cybernet.us

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553 error, the email bounced back from email server

March 12, 2019, 8:38 am
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Hi,

Our email has bounced back from our customer's email server, the error code is 533. Response message:

553 Message filtered. Refer to the Troubleshooting page at http://www.symanteccloud.com/troubleshooting for more information. (#5.7.1)

We are using google G suite, this issue starts from 11/March/2019 or 10th? Our email can reach to the other end before that.

Could you please tell me what should we do to prevent it happen in the future.

Thank you.

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Mail Delivery System

March 16, 2019, 2:06 am
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Hi,

I am unable to send emails to one of my supplier. Error as below.

The following message to <V.Rajeshwar@wago.com> was undeliverable.

The reason for the problem:

5.3.0 - Other mail system problem 553-'Message filtered. Refer to the Troubleshooting page at\nhttp://www.symanteccloud.com/troubleshooting for more\ninformation. (#5.7.1)'

Please provide solution.

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Emails are bounced/blocked

March 19, 2019, 1:20 pm
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Our emails are being bounced/blocked even though the doamin is not blacklisted. We usually send massive emails numbers each week to our customers through Exact Target. We are currently in the testing process for this new domain and testing is failing / emails are not delivered. This is a high priority concern for our company. Can you please help?

Our public IP for this domain is 13.111.64.183 

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Emails being Filtred

March 20, 2019, 10:45 am
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Our emails are being bounced/blocked even though the doamin is not blacklisted. We usually send massive emails numbers each week to our customers through Exact Target. We are currently in the testing process for this new domain and testing is failing / emails are not delivered. This is a high priority concern for our company. Can you please help?

Our public IP for this domain is 13.111.64.183 

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Emails being blocked as spam

March 21, 2019, 1:30 pm
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Good afternoon,

I have a client who's emails started getting blocked on March 1st to a specific email. I have tried emailing  investigation@review.symantec.com, but it bounces back with this responce:

I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to <postmaster>.

If you do so, please include this problem report. You can delete your own text from the attached returned message.

<investigation@review.symantec.com>: 554 5.1.2 Recipient address rejected: User unknown

I have tried emailing CLOUDfeedback@feedback-87.brightmail.com with not responce or a notification of it being delivered. I have called the support 1-800 number and was directed to the sites I have already been to.  If there any way to get a domain or ip address removed from the blacklist that actually works?

Any help would be appriciated.

Thank you,

Tyler

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Emails to Clients Bounce Back 553 Error

March 22, 2019, 8:45 am
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Hi, 

I am unable to email any of our clients using Symantec as I am receiving a "553 Filter Message Error". I am unable to send emails, or even reply to old ones. This is now affecting my personal email accounts which I have attempted to use to be able to communicate with clients, but I am now getting the same error. Im not sure what you are using to filter messages, but filtering my personal accounts is a major issue, let alone the company Domain. 

Would it be possible for someone to contact me on how to get this resolved ASAP. I spoke to support who said they could not help me as I am not a customer, therefore, there is nothing to be done. We can't ask all of our clients to raise tickets on our behalf as it is incredibly unprofessional.

Thanks, 

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