Although your company higher-ups can read your email and block it, most likely, you’ve run into a different problem. While we strongly caution against sending personal email from your work account, the bottom line is that your email system isn’t working as it should. We’ll go through the most common culprits behind returned, or bounced, email.
- Incorrect email address. You may think you’ve ruled this one out, but double-check your outgoing mail address to ensure you have it right. A simple “.com” instead of “.net” creates a delivery problem that isn’t immediately obvious.
- Text that triggers a spam filter. Some ISPs aggressively scan for words or phrases that commonly appear in spam. If found, email can be trapped in a filter or, less often, returned as undeliverable. Check your email for content and try to resend it.
- Vírus or wörm infection. Your computer may be infected, which in turn, causes other systems to block your email. Be sure to scan your PC for such a problem.
- Blacklisted email address. If someone used your ISP to spam others, your service could be on a blacklist. If your ISP is blacklisted, other ISPs automatically refuse email originating from your service. Have your recipients check with their companies (e.g., Tengster.com) to see whether this is the case.
- Blocked email address. Most ISPs allow users to block individuals, or even whole domains, to prevent spam or harassment. So, if your recipient doesn’t want to hear from you and adds you to a blocked-senders list, your email is automatically refused. Unless he personally removes the block, your email bounces back.
- DNS configuration problems. If your ISP doesn’t have the correct DNS (domain name server) configuration, many services won’t accept your email. If you suspect this is the problem, forward the bounced messages to your email administrator and have him investigate further.
To truly get to the heart of the problem, you need to investigate the specific error message you’re receiving in the returned mail or forward it to your administrator. (Since our reader’s email is personal and not work-related, there’s only so much he can do as far as asking his IT guy to step in.)
To troubleshoot the error yourself, vísít the ISP’s technical support site and look for more information. When we searched for AOL’s troubleshooting information, we found help at http://postmaster.aol.com. If you don’t know where to start, click on the Error Messages hyperlink and look for the same text that appears in your returned email message.
Instead of pressing [Enter] to insert a blank line of space between your paragraphs, press [Ctrl]0 ([command]0 on the Mac), using the zero key at the top of the regular keyboard (not the one on the number pad).
This keyboard shortcut changes the current paragraph’s formatting to include 12 points of blank space at the beginning of the paragraph. When you press [Enter] to begin a new paragraph, Word carries this formatting over to the new paragraph as well so that 12 points of space appears between the original paragraph and the new one.
To turn off this formatting, place the insertion point in the paragraph you want to change, and then press [Ctrl]0 ([command]0 on the Mac) again. You can use this technique to change the spacing for the current paragraph or several selected paragraphs.
If you want to match a new document’s image size and resolution to an existing one, there’s a simple way to do so. With your existing document open and active, press [command]A ([Ctrl]A in Windows) to Select All, and then [command]C ([Ctrl]C) to Copy. Don’t worry; you don’t have to paste the image, but copying the image captures all the image details–including the image size and resolution–to the clipboard. Now choose [command]N ([Ctrl]N in Windows) and Photoshop opens the New Document dialog box with the image size values of the existing document filled in. Just click OK or press [Enter] and you’re good to go!
One common question about network topology is how to position firewalls and DMZs. Often, a single firewall is used to handle the rules for both the internal and external interfaces, and the DMZ is connected to that firewall. This approach, compared to multiple firewalls, reduces costs, and simplifies management (especially from a troubleshooting perspective). However, many security-conscious companies opt for a “firewall sandwich,” such as having one firewall facing outside, and another facing the internal network as well as the DMZ.
While there are many opinions about the merits of a firewall sandwich, a few general points apply: First, it usually makes sense only if the firewalls are from different vendors. A related point is that two firewalls aren’t necessarily better than one and should not be viewed as a panacea. Instead, layering firewalls is best seen as a tactic for thwarting certain scenarios such as a zero-day attack based on a newly discovered vulnerability in a given firewall product. By using two firewalls, you can slow down attacks that rely on vulnerabilities in the firewall itself. However, this is only a small component of a defense-in-depth strategy, since there are so many other vectors of attack besides exploiting specific firewall weaknesses.
Photoshop certainly has a leg up on backwards compatibility. Not so with Illustrator or InDesign. How many times have you failed to open a file—even to do nothing more than preview or print—because it was created with a more recent version than you have? Don’t fear, there is a workaround. First, launch InDesign. Choose File > Place, navigate to the Illustrator or InDesign file that you want to print, select it, and click Open. Click on the page to place the file. You can either print this file or export it as a PDF (File > Export) for easy viewing the next time!
If you’re editing a large document that also includes a number of images, you may find that scrolling is quite slow. This happens because Word has to load each image as you scroll, which can make your productivity drag.
Fortunately, if you display picture placeholders rather than your actual images, you won’t have to worry about this needless slowdown any more.
To display picture placeholders:
- Select Tools | Options from the menu bar, and select the View tab. (In Word 2004, select Word | Preferences.
In 2007, click on the Office tab, then select Word Options. Click on Advanced.)
- Select the Picture Placeholders check box (Image Placeholders in 2004) in the Show area, and click OK.
If an AutoShape or some other drawing tool is slowing down your scrolling, there’s also a way to deal with this—hide all drawing objects. Here’s how:
- Reopen the View tab of the Options dialog box.
- Deselect the Drawings check box, and click OK.
Moving or copying files between servers may sometimes be unreasonably slow or even come to halt. Unfortunately, any server slowness can affect a lot of people. One common culprit is that something may be going wrong with a feature in network interface cards (NIC) called TCP offload engine (TOE). TOE is supposed to help performance by offloading TCP/IP processing to the network controller. However, TOE may not always be compatible with other hardware or software features being used, particularly if the firmware or other components are outdated. In addition, a TOE NIC may have been designed for an older, slower CPU. With an updated server, it may not always make sense to offload TCP/IP processing, and doing so may even result in synchronization problems.
If you suspect a TOE problem or just want to experiment with something that may improve performance, try disabling TCP Connection Offload (IPv4) in the network adapter driver properties. (You can typically find this setting in the network adapter’s Advanced tab.) You can also make the change in the Windows Registry.
If you’ve pinpointed TOE as the problem, you may also want to consider updating the BIOS, firmware, and network adapter driver, as doing so may allow TOE to work properly without slowing things down.
For more details on TOE-related problems, consult the following web page:
Having the PowerPoint viewer accessible can come in handy even when you least expect it. For example, it can save you a good deal of embarrassment if you travel to a remote location to give your presentation only to find that the computer they’ve reserved for you doesn’t have PowerPoint installed on it. But if you travel with a laptop, the PowerPoint Viewer shouldn’t be used as a replacement for the PowerPoint application unless absolutely necessary. If you’re armed only with the viewer you can present your slide show virtually anywhere, but even the tiniest edit to your slide show (such as making a last minute grammar correction) is impossible without PowerPoint installed on your computer.
If you’ve ever wanted to create a formatting style that’s different than any of the currently available styles, you’ll be glad to know that there’s an easy way to do it. First, select the cell that has the combination of formats that you want to include in the new style. Then, choose Style from the Format menu and in the Style name box, type a name for the new style. To define and apply the style to the selected cells, click OK. To define the style without applying it, click Add, and then click Close. Also, if no cells have the formats you want for the style, you can specify the formats when you name the style.
There are times when you have to share the spotlight with one or more fellow presenters. If it falls to you to act as moderator, here are a few points to keep in mind:
1. Plan a general outline for the presentation and alert each presenter of your need to do so. This will push people to prepare their content early and do a more thorough job.
2. Ask each presenter for some biographical information. If you need to warm up the audience or introduce each person before they present, a little background can be very helpful.
3. Correspond with the other presenters well ahead of time and always provide ample ways to contact you. In addition, make sure you ask for multiple contact routes to stay in touch with presenters.
4. Ask that each presenter consider a list of at least three questions that audience members are likely to have. Putting oneself in the place of the audience can help foster more stimulating discussion and structure a more useful presentation.
5. Make each presenter well aware of the amount of time they can use for their show, and establish a signal for where time is almost up, and when they need to finish.
6. Give some coaching as to the format of the question and answer part of the show: whether questions may be addressed before the next speaker, how many may be answered, and whether other speakers may chime in.