Which mailbox is suitable for mass mailing?

Email categories include: QQ personal email, 126 email, 163 email, 139 email, Netease email, etc. Personally, I think Netease mailbox may be better. But now some company administrators don't look at their mailboxes, and the effect of mass mailing may not be very good.

If you can collect the mobile phone numbers of interested customers here, you can use the regular 106 short message group sending platform to push member notifications or member marketing information, and take the channels of the three major operators. Data can be queried and collected on some websites, which contains the public contact information of many enterprises. As long as you search the latest data in front, the effect of mass sending will be better.