Hi Edgar,
If you have not already drop your concurrent connections to Yahoo down to one open connection at a time. I realize you tried it before, but leaving it this way will help your IP reputation over the long run.
--> Raymond... If I try to mail single individualized emails with only one thread, it potentially could take over 24 yours to do the mailing. (10 threads of individual emails too over 3 hours.) I simply cannot see this as a viable alternative.
Make it easier to unsubscribe. Requiring the confirmation email and passing the captcha to get on the list is great. Don't require the captcha to get unsubscribed. Are there any other ways to get on the list?
--> I am not a code writer, and someone did me a favor to write that code. I was bombarded with junk emails without the captcha. I worry that leaving the captcha off the unsubscribe will result in some BOTS sending a bunch of junk to me again.
To help avoid the problem of lazy users marking the email as spam instead of using your unsubscribe link put at the top of the newsletter how/why they got on the list and the unsubscribe info. The people who want the email will read past it, the people that don't will be more likely to use your unsubscribe link instead of marking the email as spam.
--> It is certainly not common practice to do this. As a text only newsletter, I honestly think it would look terrible. And I frankly think this is an extraordinary step to take for one troublesome email provider.
Do you manually remove addresses that received a permanent rejection (5xx) code or are they automatically removed?
--> My mailing program automatically removes hard bounces.
Say yes to marketing when you are filling out the support forms.
--> I can't resubmit anything to Yahoo because one I did in June (since the problem was not resolved) was rejected saying that I had to wait 6 months.
I do not mean to be resistant to these suggestions, but most are just not reasonable for me to do because of Yahoo alone. Again, keep in mind I have been sending this newsletter for close to 10 years, without much trouble from Yahoo. If Yahoo made a tweak to their settings, number of incoming threads, number of emails per hour, whatever... if I can know the specifics, I can try to make my mailing program stay within their limits. I can't keep playing this guessing game of trying every possible alternative mailing scheme.
I appreciate your help and understanding.
Edgar
-- I added an unsubscribe link at the top of the email.
-- I reduced the mailing from 10 to 4 simultaneous threads.
-- I sent individual emails instead of bcc's.
-- I included a line indicating under which specific email address the person signed up under (sometimes they forget, and have an old address forwarded to their current address), and maybe this will show up in the feedback loop reports so I know what email to remove.
-- I signed up for the feedback loop.
I also noticed something interesting. Just after doing the mailing, Yahoo sent out a bunch of bounce messages (TS01 -- too many complaints), NOT for today's mailing but for LAST MONDAY's mailing! [Not many of these.] They also sent out a bunch of your email is being delayed 168 hours, etc... again, based on LAST WEEK's newletter, but also for the one from June 7!!!
So now I wonder on the TS01 bounces, whether in fact these are people who complained, rather than just folks who were sent the newsletter after Yahoo's receipt limit was reached. (If so, I would remove them.)
1. Are the email addresses in the TS01 bounces really people who complained previously?
2. Are the email addresses in the "your message is delayed 168 hours, we will keep making attempts to deliver" really complainers or non-existent addresses or something else?
3. Most importantly: can you find out what their sending limits currently are:
-- how many simultaneous threads (connections) to Yahoo can be made?
-- how many emails to Yahoo addresses can be sent through a single connection? (Yahoo's website says no more than 20, but says that multiple threads are allowed)
-- how many total emails can be sent to Yahoo addresses over what time period, without a pause, before Yahoo begins blocking them?
-- how long a pause is necessary before more emails are sent to Yahoo addresses after a quantity limit is reached?
-- any other time/quantity/etc restrictions that I might be able to tweak in my mailing program?
Thanks... this will help more than playing guessing games each week.
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