implement
Newbie
- May 30, 2025
- 15
- 2
I have been versing myself in the field of SMTP/IMAP lately. And have been successful in creating tools such as a mailAPI which is capable of receiving up-to 10.000.000 unique emails.
Now I am looking to focus my attention on actually sending out emails from a multitude of domains I personally own. My question is not regarding to setting up my smtp VPS or the domains.
I have already configured my domains, 25 to be exact. To send out emails following all mail sending best practices I am aware of. Such as rDNS, SPF, DKIM, SSL/TLS, etc. I am not utilising any third-party software to run my campaigns, I host my own `smtpd` service on `VPS`.
I have been researching the best methods for warming up sending for a unique domain. And the common consensus seems to be that a slow incremental increase of `20` per day is safe.
| Day | Emails Sent |
| --- | --- |
| 1 | 20 |
| 2 | 40 |
| 3 | 60 |
| 4 | 80 |
| 5 | 100 |
| 6 | 120 |
| 7 | 140 |
| 8 | 160 |
| 9 | 180 |
| 10 | 200 |
I am wondering if I should stop at `200` emails sent out each day. Or if I can push it to a higher volume, or even a faster increment on volume during warmup. I am not familiar with the typical sending behavior of seasoned email spammers. And I would greatly appreciate the knowledge already existent within these circles ^_^
How do I warmup each unique domain correctly?
Now I am looking to focus my attention on actually sending out emails from a multitude of domains I personally own. My question is not regarding to setting up my smtp VPS or the domains.
I have already configured my domains, 25 to be exact. To send out emails following all mail sending best practices I am aware of. Such as rDNS, SPF, DKIM, SSL/TLS, etc. I am not utilising any third-party software to run my campaigns, I host my own `smtpd` service on `VPS`.
I have been researching the best methods for warming up sending for a unique domain. And the common consensus seems to be that a slow incremental increase of `20` per day is safe.
| Day | Emails Sent |
| --- | --- |
| 1 | 20 |
| 2 | 40 |
| 3 | 60 |
| 4 | 80 |
| 5 | 100 |
| 6 | 120 |
| 7 | 140 |
| 8 | 160 |
| 9 | 180 |
| 10 | 200 |
I am wondering if I should stop at `200` emails sent out each day. Or if I can push it to a higher volume, or even a faster increment on volume during warmup. I am not familiar with the typical sending behavior of seasoned email spammers. And I would greatly appreciate the knowledge already existent within these circles ^_^
How do I warmup each unique domain correctly?