Uncover the truth about the bounced emails of foreign trade mass mails and the solutions

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Foreign trade salesmen often face a thorny problem - mass emails encounter a large number of bounced emails, which not only seriously hinders the effective transmission of information, but is also likely to have a negative impact on the company's marketing effectiveness and business reputation.

1. Reasons for rejection
1. Invalid email address of the recipient:
This is one of the most common reasons for bounced emails. In the process of collecting email addresses, if the source channel is unreliable, such as crawling from unverified websites or purchasing low-quality nepal telegram number database customer lists, there may be a large number of incorrectly formatted, abandoned or fictitious email addresses. For example, some emails are cancelled by email service providers because they have not been used for a long time. When emails are sent to such addresses, they will inevitably result in bounced emails.
2. The mailbox is full or exceeds the quota:
Some recipients have limited mailbox storage space, especially personal email users or small business mailboxes. If daily email exchanges are frequent and not cleaned up in time, when foreign trade bulk emails arrive, their mailboxes are full and can no longer receive new emails, which causes bounced emails. In addition, some corporate emails have quota limits on the number of received emails. Once the number of received emails on a day or month reaches the upper limit, subsequent emails will also be bounced.
3. The mail server refuses to connect:
On the one hand, it may be that the sender's IP has a poor reputation. If the IP has been used for illegal bulk sending, sending spam and other malicious behaviors, it will be blacklisted by many mail servers, resulting in connection rejection. On the other hand, if the configuration of the sending server does not meet the security standards of the receiving server, such as the lack of necessary encryption protocols, incorrect SPF (Sender Policy Framework) record settings, etc., the receiving server will refuse to receive emails for security reasons.
4. Email content triggers filtering rules:
Nowadays, email service providers have adopted advanced intelligent filtering systems to improve user experience. If the content of foreign trade bulk emails contains a large number of advertising words, sensitive information, suspicious links, or has confusing formats and code errors, it is very easy to be judged as spam and returned. For example, the frequent use of exaggerated promotional terms and the mention of banned drug ingredients will trigger the filtering "nerves".