Campaign Cleaner automatically detects excessive capitalization, repeated punctuation, and overuse of currency symbols in your email - and flags or fixes them so your message reads professionally and passes spam filters.
Quick Overview of Features
Spam filters are built on decades of pattern analysis across billions of emails. One of the clearest patterns they have learned is that spammy, low-quality, and deceptive email uses aggressive punctuation to manufacture urgency. Multiple exclamation marks, strings of question marks, and repeated ellipses are reliable indicators of email that tries to manipulate rather than communicate.
SpamAssassin includes specific rules that fire when it detects successive punctuation in email bodies and subject lines. Each trigger adds to your spam score. If your total score crosses a threshold - typically 5.0 - your email is routed to the spam folder. Cleaning up punctuation is one of the fastest ways to lower your score before a campaign goes out.
ALL CAPS text is one of the oldest and most reliable spam signals. The reasoning is simple: real, professional communication does not require shouting. Email that uses all-caps sentences or subject lines is mimicking the style of scam and high-pressure sales emails that spam filters were specifically trained to catch.
Spam filters measure the ratio of capitalized words to total words in your email. A high ratio - even if no single sentence is fully capitalized - will contribute to your spam score. The fix is to write in normal sentence case and use bold or italic formatting when you need visual emphasis rather than reaching for the Caps Lock key.
Currency symbols are not inherently problematic. Mentioning a price or referring to a discount with a dollar sign is normal and expected in marketing email. The issue is density. Emails that pepper every paragraph with dollar signs, percent signs, and similar symbols match the fingerprint of lottery scams, get-rich-quick schemes, and aggressive financial spam.
Spam filters look at the proportion of currency symbols relative to the total length of your email. Keeping mentions of prices and financial figures to a reasonable count - and avoiding decorative use of currency symbols as visual elements - keeps you on the right side of these rules.
Successive punctuation specifically means two or more identical punctuation marks appearing in a row with no intervening text. The most common examples are double or triple exclamation marks, multiple question marks, and extended ellipses beyond three dots. These constructions are never necessary in professional writing and reliably trigger filter rules.
A single exclamation mark in a sentence is generally acceptable and will not cost you points. The problem begins the moment a second identical mark is added. Campaign Cleaner detects every instance of successive punctuation in your email - both in the subject line and the body - and reports exactly where they appear so you can correct them before sending.
The goal is to write email that reads the way a trusted professional would write it. That means single punctuation marks at the end of sentences, no all-caps shouting, and price mentions kept proportional. Confidence in your product or offer does not require exclamation marks after every sentence - clear, direct language is more persuasive and far less likely to be filtered.
Run every campaign through a punctuation and capitalization check before sending. It takes seconds and protects the deliverability of every email in the send. Over time, developing cleaner writing habits reduces the issue at the source, but a pre-send check is always worth including as a final step in your workflow.
Become a part of the Campaign Cleaner community today, and join countless satisfied customers who have witnessed significant improvements in their email deliverability and campaign success. Don’t let HTML issues hold you back; let Campaign Cleaner optimize your campaigns and boost your inbox rates.
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