We are providing all the smtps which are needed for spamming with good inbox delivery they list of smtps which we provide is below.
Note : All the smtps we provide are hacked smtps and thats the reason they are good in inbox delivery.
Amazon Ses Smtp has good limit of 50k with inbox delivery on office365.
Strato Smtp has good inbox reputation with 5k per day sending limit.
Ionos Smtp is good smtp for inbox delivery if you know how to use good sender email for inbox delivery it has a limit of 5k.
Proximus is a very powerfull smtp that do not die even if your emails are incorrect and bouncing back it have a limit of 10k per day and its inbox on office365.
T-online is a very good smtp and its very old too in terms of spamming it has a limit of 5k it dont die and also it is inbox on yahoo hotmail not on office365 and gmail.
plala.or.jp is a japan smtp with unlimited sending and also it is inbox on office365 the only problem is it dont send too fast btw why you need to spam so fast the main purpose is to get results no ?
Register.it is a very good smtp with 10k sending limit and its inbox on office365 and also it dont die you can use it as long as the password is not changed from the owner.
Earthlink smtp is good for spamming office365 but the main issue with earthlink is it dont send alot of emails.
Tubosmtp is a very strong smtp for sending huge amount of emails on other domains this is not used for office365 but its inbox on hotmail.
Everyone knows about godaddy webmails its inbox on office365 but the limit is only 1k perday.
Damn Mimecast so far i have seen mimecast the strongest smtp for office365 and it dont have any limit but we get it not too often but if its available the time you ask its your lucky day bro 😉
Rackspace is a good smtp for delivering letters inbox on office365 but the limit is too less.
Sakura Internet is also japan smtp which is good for spamming office365 it have a limit of 10k to 20k.
Zimbra webmail are good for spamming office365.