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In the proces of writing a daemon to monitor and respond to failed login attempts, I noticed this pattern repeated numerous times every day: Five simultaneous connections - never any more, never any less: Sep 9 04:00:34 www postfix/smtpd[444]: connect from 592329.soborka.net[94.158.158.194]...

Like most hosters - I'm sure - many of our clients create e-mail accounts that forward incoming e-mail to mailboxes hosted on other e-mail services. e.g., Gmail. Lately, though, a handful of these accounts have been receiving a lot of spam (i.e., UCE) and that's been causing a lot of damage...

Lately I've been spending a lot of time grok'ing the Postfix logfile (i.e., /usr/local/psa/var/log/maillog) and I've been noticing a lot of authentication failures (and even one successful break-in). Most entries are just a simple pair of log entries that includes the source IP address and...

I've already described the troubles that I've had managing e-mail accounts with the Web-based interface (i.e., example.com:8443) & mailmng... Creating Mail Accounts From the CLI E-mail Accounts: Outbound Spam ...and now I've got another: Messages delivered to the e-mail account that was...

When I use the /usr/local/psa/admin/bin/mailmng script to update the password for a mail account, the account is removed: [root@www postfix]# /usr/local/psa/admin/bin/mail_auth_view Authentication database contents...

E-mail Accounts: Stopping Outbound Spam WARNING: Some names have been changed to protect the privacy of the individuals involved During the installation and configuration of Plesk 11.x, we had created an e-mail account for testing purposes ([email protected]). It seems that someone recently...

The IP addresses assigned to our servers have changed so it's time to update the default SPF information contained in the DNS records for ALL of the domains hosted on our servers: OLD v=spf1 +ip4:173.236.23.185 +ip4:173.236.23.188/30 +a +mx -all NEW v=spf1 +ip4:69.160.255.188/30...

Our client's autoreply feature isn't working. Plesk Panel: Plesk Panel 11.0.9 Update #61 Operating System: CentOS 6.5 (x86_64) Mail Transport Agent: Postfix What steps should I take to troubleshoot this?

Since we've begun monitoring DNS service on our Plesk Panel server.... OS: CentOS 6.5 (Final) Panel version: 11.0.9 Update #60 we've noticed nightly DNS failures. Looking in /var/log/messages, we can see that BIND is reloading repeatedly at the same time that the outage occurs: [root@www log]#...

It's easy enough to disable e-mail and DNS for an alias when adding the alias (Subscriptions -> Example.com -> Websites & Domains -> Add Domain Alias) but I can't find the option to disable e-mail service after the alias has been created. Ideas? Suggestions?

I've noticed that enabling the "Suspend domains until backup task is completed" feature causes lots of downtime during backups and that affects our SLA. [Aside from the obvious impact on availability] What are the advantages and disadvantages to suspending the domains during backups? Are...

I've removed customers [using the Web interface] but the customers' data still exists in the server backup repository (i.e., /var/lib/psa/dumps). How can I delete customers' data from the server backup repository when deleting the customer's account? Is there an option that I've overlooked...

There's a new warning on my Plesk homepage: Clicking the first link -- "...so please check the e-mail, fix the errors, and click here to retry generating broken configuration..." -- fails with the error message... The detailed error message that was e-mailed to [me] tells me that Plesk...

I'm trying to troubleshoot Spamassassin and can't quite understand how messages are being routed through the system. Is there a KB article or a page in the Advanced Administration Guide, Parallels Plesk Panel 11.0 for Linux that describes the operation of Postfix with Spamassassin? Something...

In the past two weeks our Plesk Panel server (PP 11.0.9 [Update #60] on CentOS 6.4 [x86_64]) has unexpectedly killed all network daemons and others (e.g., cron) three times, leaving only Apache listening on TCP/7080: [root@www log]# netstat -tanp tcp 0 0 :::7080...

We started getting phone calls from clients complaining that they couldn't send/receive e-mail today so we checked the maillog and found dozens of these messages: Oct 18 17:26:19 localhost postfix/smtpd[12616]: connect from atl4mhfb01.myregisteredsite.com[209.17.115.55] Oct 18 17:26:21...

Is there some way to view individual client backups without having to drill-down into each & every subscription (e.g., an overview of all client backup activity)?

The Backup Manager documentation doesn't specifically address the how the option "Back up individual user accounts with websites..." except to say... Do Server Backups count against customers' storage usage? Are customers able to opt-out of scheduled server backups (or will it be the...

A client has requested that one of their e-mail addresses (e.g., [email protected]) be forwarded to another of their e-mail addresses (e.g., [email protected]) but there are already a few hundred e-mail messages in Fred's mailbox. Is there an easy way to move those messages from Fred's mail...

My VPS provider (BitronicTech) has changed the IP addreses assigned to my VPS and, as a result, all of the DNS entries are incorrect. Is there a way to update the IP addresses all DNS records at once? e.g., Change all of the resource records (RR's) associated with a specific shared IP address?