Re: [mailop] is warming IPs still necessary?

2024-03-27 Thread Gerald Oskoboiny via mailop
* Gerald Oskoboiny via mailop [2024-03-25 15:58-0700] >We are planning to move the system that hosts our email >discussion lists from its old home where it has been for >decades to an EC2 instance on AWS. It does about 15k deliveries >per day, most of which go to gmail or google-hosted email >

Re: [mailop] Amazon SES [Was: is warming IPs still necessary?]

2024-03-27 Thread Michael Peddemors via mailop
On 2024-03-26 15:14, Ken Johnson via mailop wrote: Here, I have seen a gradual improvement in the quality of mail (now seeing a few legitimate users) coming from Amazon SES (based on headers containing amazonses.com), and now only add +3 in our local SpamAssassin filters. Of course, other peo

Re: [mailop] [EXTERNAL] Re: is warming IPs still necessary?

2024-03-27 Thread Christian de Larrinaga via mailop
IP reputation and domain reputation are both vital when moving a server/service. Even for low visibility mailer domains. Checking the neighbourhood is an important element of that planning. Laura I thought your blog post on DKIM very good. I've had several examples of crap concatenation and simil

Re: [mailop] [EXTERNAL] Re: is warming IPs still necessary?

2024-03-27 Thread Laura Atkins via mailop
> On 26 Mar 2024, at 17:48, Brotman, Alex via mailop wrote: > > I'm not on the sending side, but I will note there are several ESPs running > out of EC2. Some seem to use their own IP ranges, some do not. Yeah, and they had problems in the past where some major ISPs were blocking all space