I've used SparkPost for the past 5 years and have been very happy with the level of service and deliverability they offer.
They are quite strict when it comes to quality - so you really do need to ensure you have clean sending lists and that you process bounces to avoid sending mail to bounced emails - that's one of the quickest ways to destroy your sending reputation.
SparkPost isn't exactly cheap - but I was surprised recently when I compared prices to Postmark - when you include the (mandatory IMO) cost of a dedicated IP address, SparkPost is significantly cheaper than Postmark!
Reporting-MTA: dns; b232-61.smtp-out.ap-southeast-2.amazonses.com
Action: failed
Final-Recipient: rfc822; <redacted>@hotmail.com
Diagnostic-Code: smtp; 550 5.7.1 Unfortunately, messages from [69.169.232.61] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [BN1NAM02FT024.eop-nam02.prod.protection.outlook.com]
Status: 5.7.1
Anyone having issues with hotmail rejecting emails from Amazon SES because hotmail has placed SES on blocklist?
Code:Reporting-MTA: dns; b232-61.smtp-out.ap-southeast-2.amazonses.com Action: failed Final-Recipient: rfc822; <redacted>@hotmail.com Diagnostic-Code: smtp; 550 5.7.1 Unfortunately, messages from [69.169.232.61] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [BN1NAM02FT024.eop-nam02.prod.protection.outlook.com] Status: 5.7.1
Anyone having issues with hotmail rejecting emails from Amazon SES because hotmail has placed SES on blocklist?
Code:Reporting-MTA: dns; b232-61.smtp-out.ap-southeast-2.amazonses.com Action: failed Final-Recipient: rfc822; <redacted>@hotmail.com Diagnostic-Code: smtp; 550 5.7.1 Unfortunately, messages from [69.169.232.61] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [BN1NAM02FT024.eop-nam02.prod.protection.outlook.com] Status: 5.7.1
I've used SparkPost for the past 5 years and have been very happy with the level of service and deliverability they offer.
Yes the dedicated IP should solve those IP block issues, but can be too expensive for smaller forums. Without dedicated IP I found Postmark to be better than Sparkpost. I have tried about five and postmark is working best.You really want a dedicated IP address to avoid these types of issues.
SES rejected me. I event sent them a link to this thread.
Will only ever use Amazon SES - for one thing, it removes the real server IP in mail headers. So if you use Cloudflare proxy, you won't leak your real server IP for security reasons.
Been using SES for years, never had this issue before. Not going to pay $30 per mth for a dedicated.You really want a dedicated IP address to avoid these types of issues.
but can be too expensive for smaller forums.
Yes, this is my point. Without dedicated IP you do rely on a good provided to keep their shared IPs as clean as possible, but it's not perfect. For exampleBeen using SES for years, never had this issue before. Not going to pay $30 per mth for a dedicated.
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