Hi Glen and all,
I learned a lot from observing several of the most successful female marketers, even though it's still a majority mens' world, if you take a look at leaderboards...
Post to lots of safelists daily, and keep a schedule and stick to it. Also promote your safelists just like your promote your main businesses, gather your biz groups to join your safelists and all promote the same business heavily, if it's an MLM and if your safelists also have a downline income from upgrades, that can really supercharge your earnings. Some safelists also have a downline-mailer so getting other people to join those lists is really in your best interest if you get the ability to email them every few days.
Use the same subject-line in several safelists within a few minutes' time, I like to call that "carpet-bombing" or use the same subject-line all day, in bursts of several list-mails several times per day, it gets people's curiosity, at least it bugs them enough so they might click open one of your emails if they receive several of the same subject-line sent thru several safelists. Make sure it's a UNIQUE subject-line that you thought up yourself, not a company-written ad used by tons of people.
You're right about being unique, it's absolutely necessary to use unique subject-lines to get noticed in the daily pile of emails, even if lots of people are just mindlessly clicking for credits on hundreds of mails, we all DO sometimes notice the headlines that stick out and grab our attention.
Some of the safelist owners have said that subject-lines of around 35 characters are best.
Now they also say NOT to put URLs in our email ads because those messages could end up in peoples spam folders or not be sent at all. Safelists have a place to put in our URL, but they say not to put it in the body of the ad. Especially never put a lot of URLs in an ad, keep your focus on 1 business in your ad.
Safelist owners also say not to any use dollar-signs ($) and not more than one exclamation point (!) in the subject-line, and don't use the word "free" and never use all capital letters, all those can also set off the spam filters.
Within the body of the ad, don't use 6-digit or higher amounts, $1,000,000's will also set off spam filters. If your business has a potential 6-figure or higher income, just say that..."potential 6 figures"...or use the word "millions" but don't put a dollar sign on the end, even though I greatly enjoy talking about MILLION$! LOL.
One thing that works well for me, focus on 1 business, or not more than 2 main businesses, and only promote ONE in each email ad. When you promote the same biz over & over for several days, you'll see results, then stick with it for the longterm.
Also put your name at the end of email ads, because lots of people who join stuff say they saw a certain business lots of times without a name, and then decided to join thru an ad that has a name in it. You need to build up your name-recognition, and also if some safelists allow graphics, include your photo at the end. The human face really brings in more response than no photo, and more response than an icon or product image.
If you get notified of leads or signups, reply to them on the same day they became your lead and send them all your best ad sources after they join you, and offer advice.