We sent out our first MarketingStudies.net e-zine (named infoMarketing) this Friday. BTW - if you haven't seen this yet, check out the previos article on difficulties of e-mail delivery and some stats from the first e-zine mailing.

Here are the basic statistics so far:

Total list size: 1373 [total subscriber count]

Confirmed (double opt-in) subscribers: 981 [71,45%]
[the number of people that actually confirmed their subscription; this number is actually quite high; especially considering other projects I was working on]

Total recipients after "remove" list check: 938 [95,61%]
[the total number of people that the first mailing was sent to; we got this number after removing the people that were already on our global removal list]

Undelivered: 51 [5,4%]

Removal requests: 5 [0,53%]

And here are the updated statistics for the first e-mailing sent regarding the e-zine (the announcement one day earlier):

Total list size: 1366 [total subscriber count]

Confirmed (double opt-in) subscribers: 974 [71,3%]

Total recipients after "remove" list check: 945 [97%]

Undelivered: 54 [5,71%]

Removal requests: 14 [1,48%]

So, we're seeing a great reduce in removals (although 0,53% is still quite high for a first issue) and a relative and absolute decrease in undelivered e-mails, which is especially interesting since we did not clear our list for the "undelivered" from the announcement e-mail and the real e-zine was in full HTML.

I find it difficult to believe that the HTML version got a better delivery rate than the pure text one, so this is something do further explore.

What's your experience?