Blogs

550 Sender verify failed’ error message

This article discusses why ‘550 Sender verify failed’ messages may occur when you try to send e-mail, and how to resolve the issue. PROBLEM: When you try to send an e-mail message, you receive the following SMTP error message: 550 Sender verify failed CAUSE: This error message occurs when the sender e-mail account does not exist in cPanel, or when the domain’s MX entry records are misconfigured in cPanel. For example, suppose you add a parked domain, an addon domain, or even an entire cPanel account (if you are a reseller). If the domain’s MX records (as set at the domain registrar) point to an external e-mail provider, you must also configure the MX entries in cPanel to use the external e-mail provider. Additionally, in cPanel you must create the e-mail accounts that you want to use to send messages. RESOLUTION: To resolve this issue, follow these steps: Make sure the e-mail account you are using to send messages actually exists in cPanel, and that you are using the correct username and password for SMTP authentication. If the domain uses a remote e-mail provider, make sure the MX entries are set correctly in cPanel: Log in to cPanel. In the MAIL section of the cPanel home screen, click Remote MX Wizard: Under Domain, select the domain you want to modify. Make sure the domain is configured to use the remote e-mail provider.
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Manage cPanel Mail Exchanger (MX) records

Manage Mail Exchanger (MX) records in cPanel cPanel manages your e-mail using its own mail server. However, you can modify Mail Exchanger (MX) DNS entries to route your web site’s e-mail to other mail servers if necessary. If you change your MX entry settings, cPanel no longer handles your e-mail settings. Only advanced users who fully understand the effects of changing MX entries should do so. In addition to MX entries, you may also need to configure e-mail routing in cPanel.  ADDING A CPANEL MX RECORD ENTRY To add an MX entry in cPanel, follow these steps: Log in to cPanel In the DOMAINS section of the cPanel home screen, click Zone Editor: Locate the domain for which you want to add an MX record, and then click MX Record In the Add an MX Record dialog box, in the Priority text box, type a priority       Lower numbers represent higher priorities. Zero (0) is the highest priority In the Destination text box, type the fully-qualified domain name (FQDN) of the mail server. Click Add an MX Record. cPanel adds the MX record.
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How To Configure DMARC Record In DirectAdmin

How To Configure DMARC Record In DirectAdmin DMARC is a system that adds some rules for DKIM and SPF, so remote servers have a better idea of what your intention is for messages that fail those 2 systems.I t doesn’t really do anything, but adds clarity for actions taken by remote servers, and should lower your spam score in some cases.Be sure your SPF TXT value contains “-all” (not ~all), and you have DKIM setup before proceeding. Note: When using the Evolution skin: Navigate to “DNS Management” Click “Add Record” For “Record Type”, select “TXT” TXT Record Type, select “DMARC” Enter your email into the “Aggregate Email (RUA)” field: spam-reports@domain.com Click “Add” For other skins, like “Enhanced”, to add a DMARC record, go to your domain’s DNS Management, and add the following TXT record: _dmarc    TXT    “v=DMARC1; p=none; sp=none; rua=mailto:spam-reports@domain.com“ Be sure to include the whole thing in “quotes”. The E-Mail Address  will sometimes be sent reported spam messages by larger providers.  Not all services will email this address, but it’s handy if a client in large email provider clicks “this is spam” for a given message, and you’ll be sent that message, so you can determine if someone on your domain is spamming or spoofing, or if the client incorrectly clicked that message (at which point, you’d probably want to remove that client from your mail-out, as they likely don’t want it). The rua=mailto:email portion is not mandatory if you don’t want to get these emails.
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How to Configure DMARdmarc record in cpanel

How to Configure DMARC Record in cPanel DMARC (Domain-based Message Authentication, Reporting and Conformance) is an e-mail authentication method designed to help reduce e-mail abuse, such as spam. It builds upon the SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail) authentication methods to provide e-mail senders and recipients a more reliable way to exchange messages. CONFIGURING A DMARC TXT RECORD IN DNS To enable DMARC for your domain, you must add a TXT record to your domain’s DNS entries that contains the DMARC configuration data. To do this, follow these steps: Log in to cPanel In the DOMAINS section of the cPanel home screen, click Zone Editor: Locate the domain you want to configure, and then click Manage. Click the down arrow icon next to Add Record, and then click Add TXT Record.     In the Name text box, type _dmarc. When your cursor leaves this text box, cPanel automatically adds the domain name to _dmarc, for example, _dmarc.example.com. In the TTL text box, type 14400. In the Type list box, select TXT. In the Record text box, type the DMARC configuration line. Click Add Record. cPanel adds the TXT record for DMARC. Now you know how to setup DMARC records in your cPanel for email validation.
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Google Webmaster Tools for Malware Removal

How to use Google Webmaster Tools for Malware  In this documentation, we can check how to use Google webmaster tools (Google Search Console) for malware removal & review. Malware is a malicious code or software which may tends to redirect unsuspecting users away from a compromised site to a website that might host a phishing page. There are several types of malwares and nowadays many are suffering from malware attacks. We can safely remove this malware attack by following the Google recommendations. Once Google detects that your site is hacked, it’ll show the warning page as shown below. If your site has been hacked, please do the following Google recommendation. 1) Quarantine the site. 2) Diagnose the issue. 3) Clean up the site. 4) Ask Google to review.     Quarantine the site The important action which you have to do once Google detects that your site has been hacked is to take your site down. So we can prevent hackers from abusing the system. Next important step is to contact InterServer Support Team and ask them to take some prevention method to safe other sites they hosted. Also make sure to change all accounts and users passwords.   Diagnose the issue Once you have completed the action to prevent the site from infecting, then identify the reason why your site has been hacked. You can do the following steps. a) Scan your site. You can use any scanning method and check the detected malware codes. b) Visit the Google Safe Browsing diagnostics page to get information about what Google’s automatic scanners have found. You can use the following link. http://www.google.com/safebrowsing/diagnostic?site=www.yoursite.com c) Check the malware page in search console to lists the sample URLs from the site has been identified as containing infected codes. d) Use the URL removal tool to request removal of infected pages. e) Check the antiphishing.org recommendation on dealing with infected sites.   Clean up the site Next step is to clean up the spam contented, newly added pages, suspicious codes identified by scanners. Also you can delete all site contents if you have the good backups and restore the site using that backup.   Request Google to Review Once you have completely cleaned your sites, you can request Google to review the site. Google will check your site and will remove the warning label within 24 hours if no malware found. Please note that you should inform Google that you are aware of the issue and have taken necessary actions to prevent this. Then Google puts your site on priority list, so that it should be scanned within 24 hours.
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30 Mar, 20

DigiCert and COVID-19 Preparedness

DigiCert and COVID-19 Preparedness To our valued customers: We understand that this is a time of heightened concern, and we want to reassure our customers and partners that we are prepared to deliver critical services and uptime of your secure web operations. We are committed to continue providing global security solutions with knowledgeable customer support and validation services. As part of our business continuity efforts, we have implemented our pandemic plan that includes risk mitigation and provisioning of emergency resources. Our networking capabilities will continue to support wide-scale remote work by our employees, as necessary. We also have redundant physical facilities and plans for staffing depth, should workers become sick and require self-isolation. Support will still be available to DigiCert customers 24/7. Our leadership team is prioritizing our operations while the COVID-19 pandemic persists, and we have the resources necessary to serve your needs. Thank you for your continued business and we wish you the very best during this time. If you ever have questions, please do not hesitate to reach out to your account representative, who will be attentive to your concerns.
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Junk Email Filter Management in Outlook

Junk Email Filter Management in Outlook No one likes spam or junk email. The Outlook Junk Email Filter doesn’t stop delivery of junk email messages, but does the next best thing—it moves suspected spam to the Junk Email folder.   It’s a good idea to regularly review messages in the Junk Email folder to check for legitimate messages that were incorrectly classified as junk. If you find a message that isn’t junk, drag it back to the Inbox or any folder. You can also mark the item as not junk by doing the following: Click Home > Junk > Not Junk. By default, the Junk Email Filter is turned on and the protection level is set to No Automatic Filtering. You can make the filter more aggressive by changing the level of protection that it provides. The Junk Email Filter evaluates each incoming message based on several factors. These can include the time when the message was sent and the content of the message. To change the options for the Junk Email Filter, do the following: Click Home > Junk > Junk Email Options. Junk email filter lists While the Junk Email Filter checks your incoming messages automatically, Junk Email Filter Lists let you control what is considered spam. You can add names, email addresses and domains to these lists so the filter doesn’t check messages from sources you trust, or blocks messages that arrive from specific email addresses and domains you don’t know or trust. Safe Senders list     Email addresses and domain names in the Safe Senders List are never treated as junk email, regardless of the content of the message. You can add your Contacts and other correspondents to this list. However, by design, safe domains are not recognized by default in Exchange Online or in Exchange Online Protection. Only blocked domains, blocked sender addresses, and safe sender addresses are recognized. If you use a Microsoft Exchange Server account, all names and addresses in the global address list (GAL) are automatically considered safe. The Safe Sender limit is 1024. Safe Recipients list     If you belong to a mailing list or a distribution list, you can add the list sender to the Safe Recipients List. Messages sent to these email addresses or domain names are never treated as junk, regardless of the content of the message. Blocked Senders list     You can easily block messages from particular senders by adding their email addresses or domain names to the Blocked Senders List. When you add a name or email address to this list, Outlook moves any incoming message from that source to the Junk Email folder. Messages from people or domain names that appear in this list are always classified as junk, regardless of the content of the message. The blocked sender limit is 500. Blocked Top-Level Domains list     To block unwanted email messages from another country/region, you can add country/region codes to the Blocked Top-Level Domains List. For example, checking the CA [Canada], US [United States], and MX [Mexico] boxes in the list blocks messages from email addresses that end in .ca, .us, and .mx. Blocked Encodings list     To block unwanted email messages that appear in another character set or alphabet, you can add encodings to the Blocked Encodings List. Junk Email Filter differences when Cached Exchange Mode is turned on or off If you use an Exchange account, you have access to another layer of tools to combat junk email. If you use Cached Exchange Mode or download to an Outlook data file (.pst)     The Junk Email Filter Lists are saved on the server and are available from any computer. The filter lists are also used by the server to evaluate messages. This means that if a sender appears in your Blocked Senders List, then messages from that sender are moved to the Junk Email folder on the server, and they aren’t evaluated by Outlook. If you work online     The Junk Email Filter Lists are saved on the server. They are available from any computer, but only if you have the Junk Email feature enabled in Outlook Web Access or Outlook Web App. The filter lists are also used by the server to evaluate messages. This means that if a sender appears in your Blocked Senders List, then messages from that sender are moved to the Junk Email folder on the server, and they aren’t evaluated by Outlook.
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SpamAssassin Spam Filter

SpamAssassin & Spam Filter Management To achieve the desired level of spam protection, Plesk lets you configure a number of SpamAssassin settings, namely:   Spam Filter Sensitivity To identify spam messages, SpamAssassin performs a number of different tests on contents and subject line of each message. As a result, each message scores a number of points. The higher the number, the more likely a message is spam. For example, a message containing the text string “BUY VIAGRA AT LOW PRICE!!!” in the Subject line and the message body scores 8.3 points. By default, the filter sensitivity is set so that all messages that score 7 or more points are classified as spam. If your users still receive spam messages with the default sensitivity, increase it by setting a lesser value, for example, 6. If SpamAssassin marks valid messages as spam, decrease the sensitivity by setting a higher value. Spam Marks At the server level, you cannot set the server-wide spam filter to automatically delete spam: you can do it only on a per-mailbox basis. So, for the server-wide policy, you can choose only marking messages as spam: X-Spam-Flag: YES and X-Spam-Status: Yes headers are added to the message source by default. If you want, the spam filter will additionally include a specific text string to the beginning of the messages’ subject line (by default, this string is *****SPAM*****). Though you cannot configure SpamAssassin to delete all spam messages, you can let each mailbox owner configure their own spam protection settings. This includes, for example, setting their spam filters to automatically delete messages marked by SpamAssassin, or setting up their personal black and white lists.  Maximum size of messages to check Analyzing a huge number of emails can heavily increase the load on your server. To avoid this, you can set the maximum size of the message that the spam filter will test. Number of SpamAssassin processes Another way to limit the server loading by SpamAssassin is defining the maximum number of SpamAssassin processes (on Linux) or threads (on Windows) running simultaneously on the server. In Plesk for Linux, the maximum number of SpamAssassin processes you can configure via the Plesk GUI is 32. If you require more SpamAssassin processes to run simultaneously, add the following lines to the panel.ini file: [mail] spamAssassin.maxChildrenLimit = 80 where the numeric value indicates the maximum number of SpamAssassin processes that can be configured in the Plesk GUI. (Plesk for Windows) Trusted languages and locales You can define the language characteristics of mail that should always pass the filter by specifying trusted languages and locales. Letters written in the specified languages and with the defined character sets will not be marked as spam. Black and white lists SpamAssassin lets you include certain senders into its black and white lists: If you want the emails from specific domains or individual senders to be always treated as spam, add the respective entries to the spam filter’s black list. SpamAssassin will add the USER_IN_BLACKLIST mark to the header of each email from the specified addresses to guarantee that this email will be processed as spam. As a result, the email will be marked as spam, deleted, or placed to the Spam folder, depending on the SpamAssassin settings specified for the whole server and for a particular mailbox. If you want to be sure that you and your users will not miss email from specific senders, add email addresses or entire domains to the spam filter’s white list.
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How to Park a Domain cpanel?

How to Park a Domain cpanel? Login to your cPanel / WHM Account Go to your List Accounts, in the Find option, type list and select List Accounts From the middle pane, click on the cPanel logo next to the domain you wish to manage. Under the Domains option, select Parked Domains option. Under New Domain Name, enter the name of the domain and click Add Domain, you can then manage the root folder as well as redirection from the options once added.
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How Can I Enable Flood Protection For Outbound Emails?

How Can I Enable Flood Protection For Outbound Emails? RESOLUTION: Please login on the WebUI as admin. Navigate to Manage | Security Services | Anti-Virus tab and click on the Outbound tab. Scroll all the way towards the bottom of the page and you will see a flood protection section. Click on the ” Enable Flood Protection” check box. Go to action settings and set the threshold and also action for messages if they cross the limit set in threshold ( Example below shows threshold set to 250 messages sent by one user in one hour, the messages will be stored in junk box once the user crosses the threshold). Click ” Apply Changes” to save the settings  ITBrands.pk is the official partner of SonicWall in Pakistan
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