Hi, I understand your point about slow, but not applicable in this case here. I am sending through a large national SMTP mail service vendor (SendGrid) who handles what is queued to them on their end and throttles speed depending on recipient domain, grey bounces etc. They specifically recommend the send rate settings for the messages to their server which handles actual delivery to recipient by individual rate limiting from there. And yes, I have tried again with testing again the app versions one by one, which the other zipped and removed from computer before opening the other version and running it.
Could this be an issue of list size and memory handling - whereas something in the 8.5.1 version is choking on it where 8.5. isn't? Our newsletter list is around 100,000.
Here are the two log reports
(with personal info xxx'ed out) from today's newsletter where I manually stopped each after just 1300. Keep in mind that the sending speed to the SMTP server from 8.5.1 gets even slower the longer I let the send continue through the list. After running through 10s of thousands it slows to a crawl. Whereas, when I use 8.5 it never slows throughout the whole list. Keeps the same pace throughout the send :
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MaxBulk Mailer Delivery Report [#451] - 12/22/15
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Mailer version: 8.5.1-US (Cocoa) Pro - Registered
Machine OS/speed: Mac OS 10.11.2 El Capitan/3.4Ghz
Streams: 2 [2 Used] Single Server
Delivery mode: Singly (Tag processing ON)
SMTP server address: smtp.sendgrid.net [Port: 587] SSL Off
Authentication: ESMTP (Login) | [192.168.0.34]
Groups: 60 [Interval: 00:00:02]
Delivery start date: 12/22/15 at 12:56:07 PM
End date: 12/22/15 at 1:10:02 PM
Total duration: 13 minute(s), 55 second(s) (Cancelled by user)
Rate: 1.56 recipient(s)/second
to a total of: 94,489 recipient(s) [94,489/94,677]
List name: unknown
Sent: 1,302
Failed: 93,187 undelivered [Delivery cancelled by user]
Mail subject: XXXX XX, XXXXXXX XXXXXX, XXXXX XXXXXX
Mail priority: Normal
Reply To:
[email protected] (Sender)
Errors:
[email protected] (Sender)
Return receipt: No
Mail format: HTML only | utf-8 | quoted-printable
Mail size: 6.59 KB (Doesn't include attachments)
Attachments: none
MLM: Click-through tracking [Deactivated]
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MaxBulk Mailer Delivery Report [#452] - 12/22/15
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Mailer version: 8.5-US Pro - Registered
Machine OS/speed: Mac OS 10.11.2/3.4Ghz
Streams: 2 [2 Used] Single Server
Delivery mode: Singly (Tag processing ON)
SMTP server address: smtp.sendgrid.net [Port: 587] SSL Off
Authentication: ESMTP (Login) | [192.168.0.34]
Groups: 60 [Interval: 00:00:02]
Delivery start date: 12/22/15 at 1:13:27 PM
End date: 12/22/15 at 1:17:43 PM
Total duration: 4 minute(s), 16 second(s) (Cancelled by user)
Rate: 5.08 recipient(s)/second
to a total of: 93,187 recipient(s) [93,187/94,677]
List name: unknown
Sent: 1,301
Failed: 91,886 undelivered [Delivery cancelled by user]
Mail subject: XXXX XX, XXXXXXX XXXXXX, XXXXX XXXXXX
Mail priority: Normal
Reply To:
[email protected] (Sender)
Errors:
[email protected] (Sender)
Return receipt: No
Mail format: HTML only | utf-8 | quoted-printable
Mail size: 6.36 KB (Doesn't include attachments)
Attachments: none
MLM: Click-through tracking [Deactivated]
