Limited Volume: Free services often have Sweden Phone Number limitations on the number of email addresses you can verify at once. This might be inconvenient for large email lists.
Maintaining a clean email list requires a multi-pronged approach. Here are some tips to consider alongside free verification:
Double Opt-In: Implement a double opt-in process where users need to confirm their email subscription after initially signing up. This helps prevent typos and ensures users genuinely want to receive your emails.
Regular Cleaning: Regularly clean your email list, ideally every few months, to identify and remove invalid addresses that accumulate over time due to typos, inactive accounts, or domain changes.